| 2021 | 2022 | 961,000 | 1,000 | 962,000 | 0 | 961,000 | 1,000 | 962,000 |
| 2020 | 2021 | 347,000 | 470,000 | 817,000 | 0 | 347,000 | 470,000 | 817,000 |
| 2019 | 2020 | 370,000 | 488,000 | 858,000 | 0 | 370,000 | 488,000 | 858,000 |
| 2018 | 2019 | 369,000 | 466,000 | 835,000 | 0 | 369,000 | 466,000 | 835,000 |
| 2017 | 2018 | 333,000 | 414,000 | 747,000 | 0 | 333,000 | 414,000 | 747,000 |
| 2016 | 2017 | 292,000 | 363,000 | 655,000 | 0 | 292,000 | 363,000 | 655,000 |
| 2015 | 2016 | 261,000 | 315,000 | 576,000 | 0 | 261,000 | 315,000 | 576,000 |
| 2014 | 2015 | 212,000 | 311,000 | 523,000 | 0 | 212,000 | 311,000 | 523,000 |
| 2013 | 2014 | 196,000 | 286,000 | 482,000 | 0 | 196,000 | 286,000 | 482,000 |
| 2012 | 2013 | 196,000 | 291,000 | 487,000 | 0 | 196,000 | 291,000 | 487,000 |
| 2011 | 2012 | 200,000 | 298,000 | 498,000 | 0 | 200,000 | 298,000 | 498,000 |
| 2010 | 2011 | 200,000 | 305,000 | 505,000 | 0 | 200,000 | 305,000 | 505,000 |
| 2009 | 2010 | 181,000 | 273,000 | 454,000 | 0 | 181,000 | 273,000 | 454,000 |
| 2008 | 2009 | 213,000 | 338,000 | 551,000 | 0 | 213,000 | 338,000 | 551,000 |
| 2007 | 2008 | 194,000 | 308,000 | 502,000 | 0 | 194,000 | 308,000 | 502,000 |
| 2006 | 2007 | 173,000 | 273,000 | 446,000 | 0 | 173,000 | 273,000 | 446,000 |
| 2005 | 2006 | 164,000 | 253,000 | 417,000 | 0 | 164,000 | 253,000 | 417,000 |
| 2004 | 2005 | 150,000 | 231,000 | 381,000 | 0 | 150,000 | 231,000 | 381,000 |
| 2003 | 2004 | 141,000 | 205,000 | 346,000 | 0 | 141,000 | 205,000 | 346,000 |
| 2002 | 2003 | 106,000 | 192,000 | 298,000 | 0 | 106,000 | 192,000 | 298,000 |
| 2001 | 2002 | 99,000 | 177,000 | 276,000 | 0 | 99,000 | 177,000 | 276,000 |
| 2000 | 2001 | 90,000 | 158,000 | 248,000 | 0 | 90,000 | 158,000 | 248,000 |
| 1999 | 2000 | 77,000 | 135,000 | 212,000 | 0 | 77,000 | 135,000 | 212,000 |
| 1998 | 1999 | 70,000 | 114,000 | 184,000 | 0 | 70,000 | 114,000 | 184,000 |
| 1997 | 1998 | 0 | 0 | 0 | 0 | 70,000 | 88,000 | 158,000 |
| 1996 | 1997 | 0 | 0 | 0 | 0 | 70,000 | 88,000 | 158,000 |
| 1994 | 1995 | 0 | 0 | 0 | 0 | 59,400 | 96,000 | 155,400 |
| 1992 | 1993 | 0 | 0 | 0 | 0 | 63,000 | 50,500 | 113,500 |
| 1990 | 1991 | 0 | 0 | 0 | 0 | 58,900 | 47,200 | 106,100 |
| 1988 | 1989 | 0 | 0 | 0 | 0 | 32,000 | 43,300 | 75,300 |
| 1986 | 1987 | 0 | 0 | 0 | 0 | 33,000 | 34,800 | 67,800 |
| 1984 | 1985 | 0 | 0 | 0 | 0 | 33,000 | 45,300 | 78,300 |
| 1982 | 1983 | 0 | 0 | 0 | 0 | 33,000 | 45,300 | 78,300 |
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