Year | Value | 2022 | 181,569 | 2021 | 183,200 | 2020 | 184,999 | 2019 | 187,263 | 2018 | 188,909 | 2017 | 189,250 | 2016 | 188,076 | 2015 | 185,106 | 2014 | 181,044 | 2013 | 176,725 | 2012 | 171,849 | 2011 | 166,941 | 2010 | 162,289 | 2009 | 157,344 | 2008 | 152,517 | 2007 | 148,822 | 2006 | 146,601 | 2005 | 146,100 | 2004 | 147,738 | 2003 | 151,027 | 2002 | 154,759 | 2001 | 158,822 | 2000 | 164,214 | 1999 | 169,738 | 1998 | 174,274 | 1997 | 179,133 | 1996 | 183,624 | 1995 | 184,529 | 1994 | 183,360 | 1993 | 183,077 | 1992 | 184,087 | 1991 | 187,642 | 1990 | 193,199 | 1989 | 198,550 | 1988 | 202,718 | 1987 | 203,396 | 1986 | 199,375 | 1985 | 193,904 | 1984 | 189,151 | 1983 | 184,960 | 1982 | 182,254 | 1981 | 181,306 | 1980 | 181,025 | 1979 | 181,119 | 1978 | 181,733 | 1977 | 182,203 | 1976 | 181,890 | 1975 | 182,209 | 1974 | 183,498 | 1973 | 185,153 | 1972 | 188,938 | 1971 | 195,428 | 1970 | 201,439 | 1969 | 205,398 | 1968 | 206,702 | 1967 | 203,399 | 1966 | 194,799 | 1965 | 183,618 | 1964 | 172,878 | 1963 | 163,809 | 1962 | 156,849 | 1961 | 152,384 | 1960 | 149,628 |
|