| Date | Champion |
| 1st (1987.06.12) | |
| 2nd (1988.05.08) | |
| 3rd (1988.06.24) | |
| 4th (1989.04.24) | |
| 5th (1989.05.25) | |
| 6th (1989.07.12) | |
| 7th (1989.08.10) | |
| 8th (1990.08.19) | |
| 9th (1990.12.26) | |
| 10th (1991.01.17) | |
| 11th (1991.03.04) | |
| 12th (1992.01.04) | |
| 13th (1992.08.16) | |
| 14th (1993.09.20) | |
| 15th (1994.04.04) | |
| 16th (1994.05.01) | |
| 17th (1995.05.03) | |
| 18th (1996.01.04) | |
| 19th (1996.04.29) | |
| 20th (1997.08.31) | |
| 21st (1998.04.04) | |
| 22nd (1998.08.08) | |
| 23rd (1998.09.23) | |
| 24th (1999.01.04) | |
| 25th (1999.12.10) | |
| 26th (2000.01.04) | |
| 27th (2001.01.04) | |
| | Date | Champion |
| 28th (2001.03.17) | |
| 29th (2001.04.09) | |
| 30th (2002.02.16) | |
| 31st (2002.04.05) | |
| 32nd (2003.05.02) | |
| 33rd (2003.11.03) | |
| 34th (2003.12.09) | |
| 35th (2004.02.15) | |
| 36th (2004.03.14) | |
| 37th (2004.03.28) | |
| 38th (2004.06.05) | |
| 39th (2004.10.09) | |
| 40th (2004.12.12) | |
| 41st (2005.02.20) | |
| 42nd (2005.05.14) | |
| 43rd (2005.07.18) | |
| 44th (2005.10.08) | |
| 45th (2006.07.17) | |
| 46th (2007.04.13) | |
| 47th (2007.10.08) | |
| 48th (2008.01.04) | |
| 49th (2008.04.27) | |
| 50th (2009.01.04) | |
| 51st (2009.05.06) | |
| 52nd (2009.06.20) | |
| 53rd (2009.09.27) | |
|