1984                                                               1997                                                        1997

 

                             

              1997                                                              1997                                                      1997

 

                                                       

               1998                                                              1999                                                       2000

 

                                       2001                                                         2001                                                        2001                           

 

                    

                  2002                                                        2003                                                       2003               

 

                                

                   2003                                                       2003                                                   2004

 

           

                    2004                                                      2004                                                  2004

 

                   

                  2005                                                          2005                                                 2005

 

          October 2005                                        December 2005                                          February 2006

 

                        

             March2006                                           January 2007                                        January 2007