                9            2003             10   2003   9        2002                       2002   6   2003   9               6          2002   3   2002                     2002   3        1998   12        12         1996   11   1998          1995                     1994   10   1996   11           1994   10        1993   12 12         1991  8   1993           7           1989   9   1991                                    1996   11      8   1991   8          1970       