Year | Value | 2023 | 185,040 | 2022 | 181,339 | 2021 | 179,357 | 2020 | 178,449 | 2019 | 176,866 | 2018 | 173,339 | 2017 | 168,873 | 2016 | 164,847 | 2015 | 161,705 | 2014 | 160,888 | 2013 | 163,924 | 2012 | 169,430 | 2011 | 174,889 | 2010 | 179,849 | 2009 | 184,479 | 2008 | 188,230 | 2007 | 190,273 | 2006 | 191,346 | 2005 | 192,218 | 2004 | 192,686 | 2003 | 191,867 | 2002 | 191,360 | 2001 | 192,840 | 2000 | 195,119 | 1999 | 197,250 | 1998 | 199,867 | 1997 | 203,073 | 1996 | 205,063 | 1995 | 206,940 | 1994 | 210,896 | 1993 | 216,079 | 1992 | 220,587 | 1991 | 224,237 | 1990 | 224,935 | 1989 | 217,731 | 1988 | 204,598 | 1987 | 187,166 | 1986 | 172,623 | 1985 | 161,116 | 1984 | 152,665 | 1983 | 150,933 | 1982 | 151,920 | 1981 | 148,739 | 1980 | 144,874 | 1979 | 143,844 | 1978 | 139,661 | 1977 | 136,780 | 1976 | 136,860 | 1975 | 138,497 | 1974 | 140,646 |
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