Year | Value | 2022 | 149,588 | 2021 | 153,057 | 2020 | 154,854 | 2019 | 158,202 | 2018 | 163,180 | 2017 | 166,981 | 2016 | 170,150 | 2015 | 172,925 | 2014 | 167,817 | 2013 | 149,619 | 2012 | 134,106 | 2011 | 128,243 | 2010 | 124,461 | 2009 | 120,730 | 2008 | 116,609 | 2007 | 112,344 | 2006 | 108,144 | 2005 | 104,503 | 2004 | 99,701 | 2003 | 93,249 | 2002 | 86,447 | 2001 | 79,072 | 2000 | 71,280 | 1999 | 65,042 | 1998 | 60,750 | 1997 | 57,399 | 1996 | 54,944 | 1995 | 53,176 | 1994 | 52,094 | 1993 | 51,636 | 1992 | 51,565 | 1991 | 51,652 | 1990 | 52,001 | 1989 | 52,542 | 1988 | 52,984 | 1987 | 53,297 | 1986 | 53,293 | 1985 | 53,278 | 1984 | 53,430 | 1983 | 53,528 | 1982 | 53,904 | 1981 | 53,833 | 1980 | 52,847 | 1979 | 51,554 | 1978 | 55,782 | 1977 | 59,393 | 1976 | 51,852 | 1975 | 44,390 | 1974 | 41,618 | 1973 | 38,307 | 1972 | 35,080 | 1971 | 32,791 | 1970 | 31,845 | 1969 | 32,125 | 1968 | 33,619 | 1967 | 35,945 | 1966 | 37,936 | 1965 | 38,906 | 1964 | 38,992 | 1963 | 38,213 | 1962 | 36,715 | 1961 | 35,114 | 1960 | 33,871 |
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