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                                                      4  30                 10                                                                         1998  2  15                    1997  10      4                                       20       1999  5  8                                                            2002  11  11           1997  10  30                                               2002  12                        2              2003  2  13                                                  20                                              2010  5  8                                                               1000                                  1997  10  30                                                                                                       5  9    8                                                
                                                                                                                                                                                                                4  DNA                                   1.70               1.65                                                         3   3                                                                                                                                                  DNA       DNA                                                               2002  11  11        12  5               20                                                               9                                            5  9                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                
5  13                                   65    