| 2020 | 2021 | 10,955,000 | 2,065,000 | 13,020,000 | 0 | 10,955,000 | 2,065,000 | 13,020,000 |
| 2019 | 2020 | 11,306,000 | 2,124,000 | 13,430,000 | 0 | 11,306,000 | 2,124,000 | 13,430,000 |
| 2018 | 2019 | 8,523,000 | 6,940,000 | 15,463,000 | 0 | 8,523,000 | 6,940,000 | 15,463,000 |
| 2017 | 2018 | 7,597,000 | 6,179,000 | 13,776,000 | 0 | 7,597,000 | 6,179,000 | 13,776,000 |
| 2016 | 2017 | 6,983,000 | 6,046,000 | 13,029,000 | 0 | 6,983,000 | 6,046,000 | 13,029,000 |
| 2015 | 2016 | 6,460,000 | 5,594,000 | 12,054,000 | 0 | 6,460,000 | 5,594,000 | 12,054,000 |
| 2014 | 2015 | 6,101,000 | 5,275,000 | 11,376,000 | 0 | 6,101,000 | 5,275,000 | 11,376,000 |
| 2013 | 2014 | 5,366,000 | 4,469,000 | 9,835,000 | 0 | 5,366,000 | 4,469,000 | 9,835,000 |
| 2012 | 2013 | 5,421,000 | 2,384,000 | 7,805,000 | 0 | 5,421,000 | 2,384,000 | 7,805,000 |
| 2011 | 2012 | 5,421,000 | 2,384,000 | 7,805,000 | 0 | 5,421,000 | 2,384,000 | 7,805,000 |
| 2010 | 2011 | 5,421,000 | 2,384,000 | 7,805,000 | 0 | 5,421,000 | 2,384,000 | 7,805,000 |
| 2009 | 2010 | 5,707,000 | 3,367,000 | 9,074,000 | 0 | 5,707,000 | 3,367,000 | 9,074,000 |
| 2008 | 2009 | 6,204,000 | 3,680,000 | 9,884,000 | 0 | 6,204,000 | 3,680,000 | 9,884,000 |
| 2007 | 2008 | 5,590,000 | 3,315,000 | 8,905,000 | 0 | 5,590,000 | 3,315,000 | 8,905,000 |
| 2006 | 2007 | 5,175,000 | 3,874,000 | 9,049,000 | 0 | 5,175,000 | 3,874,000 | 9,049,000 |
| 2005 | 2006 | 4,705,000 | 3,526,000 | 8,231,000 | 0 | 4,705,000 | 3,526,000 | 8,231,000 |
| 2004 | 2005 | 4,481,000 | 4,052,000 | 8,533,000 | 0 | 4,481,000 | 4,052,000 | 8,533,000 |
| 2003 | 2004 | 4,074,000 | 3,992,000 | 8,066,000 | 0 | 4,074,000 | 3,992,000 | 8,066,000 |
| 2002 | 2003 | 3,956,000 | 3,936,000 | 7,892,000 | 0 | 3,956,000 | 3,936,000 | 7,892,000 |
| 2001 | 2002 | 3,848,000 | 3,936,000 | 7,784,000 | 0 | 3,848,000 | 3,936,000 | 7,784,000 |
| 2000 | 2001 | 3,467,000 | 2,914,000 | 6,381,000 | 482,000 | 3,467,000 | 2,914,000 | 6,381,000 |
| 1999 | 2000 | 3,096,000 | 1,593,000 | 4,689,000 | 0 | 3,096,000 | 1,593,000 | 4,689,000 |
| 1998 | 1999 | 1,892,000 | 1,754,000 | 3,646,000 | 127,000 | 1,892,000 | 1,754,000 | 3,646,000 |
| 1997 | 1998 | 0 | 0 | 0 | 0 | 1,700,000 | 1,461,000 | 3,161,000 |
| 1996 | 1997 | 0 | 0 | 0 | 0 | 1,700,000 | 1,461,000 | 3,161,000 |
| 1995 | 1996 | 0 | 0 | 0 | 0 | 1,700,000 | 1,200,000 | 2,900,000 |
| 1994 | 1995 | 0 | 0 | 0 | 0 | 1,700,000 | 0 | 1,700,000 |
| 1993 | 1994 | 0 | 0 | 0 | 0 | 1,923,000 | 0 | 1,923,000 |
| 1992 | 1993 | 0 | 0 | 0 | 0 | 1,820,000 | 0 | 1,820,000 |
| 1991 | 1992 | 0 | 0 | 0 | 0 | 1,400,000 | 0 | 1,400,000 |
| 1990 | 1991 | 0 | 0 | 0 | 0 | 1,582,800 | 4,300 | 1,587,100 |
| 1988 | 1989 | 0 | 0 | 0 | 0 | 928,800 | 3,600 | 932,400 |
| 1987 | 1988 | 0 | 0 | 0 | 0 | 850,500 | 44,800 | 895,300 |
| 1986 | 1987 | 0 | 0 | 0 | 0 | 850,500 | 44,800 | 895,300 |
| 1985 | 1986 | 0 | 0 | 0 | 0 | 544,000 | 57,100 | 601,100 |
| 1984 | 1985 | 0 | 0 | 0 | 0 | 408,000 | 34,300 | 442,300 |
| 1983 | 1984 | 0 | 0 | 0 | 0 | 408,000 | 34,300 | 442,300 |
| 1982 | 1983 | 0 | 0 | 0 | 0 | 453,800 | 15,700 | 469,500 |
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