1993                                 1994                                    1995                                    1995

-A-                 -B-             -C-              -D-              1996                                    1997                                     1998                                     1998 -E-             -F-              -G-                     -H-             1999                                    2000                                      2001                                       2001  -I-                            J-              -K-              -L-               2004                                    2005                                       2006                                      2006 -M-           -N-                      -O-                -P-            2007                                     2008                                     2008 -Q-                -R-                        -S-