Year | Value | 2022 | 64,423 | 2021 | 65,656 | 2020 | 67,222 | 2019 | 68,264 | 2018 | 68,975 | 2017 | 69,394 | 2016 | 69,457 | 2015 | 69,123 | 2014 | 69,170 | 2013 | 70,432 | 2012 | 72,570 | 2011 | 75,391 | 2010 | 79,246 | 2009 | 83,122 | 2008 | 85,674 | 2007 | 86,855 | 2006 | 86,797 | 2005 | 86,341 | 2004 | 86,235 | 2003 | 85,618 | 2002 | 84,492 | 2001 | 83,917 | 2000 | 83,260 | 1999 | 82,136 | 1998 | 81,551 | 1997 | 81,163 | 1996 | 80,163 | 1995 | 78,913 | 1994 | 77,733 | 1993 | 77,283 | 1992 | 78,750 | 1991 | 81,980 | 1990 | 86,248 | 1989 | 91,116 | 1988 | 95,432 | 1987 | 98,317 | 1986 | 99,432 | 1985 | 98,808 | 1984 | 96,718 | 1983 | 93,904 | 1982 | 91,461 | 1981 | 90,046 | 1980 | 90,072 | 1979 | 91,525 | 1978 | 93,691 | 1977 | 95,789 | 1976 | 97,666 | 1975 | 99,136 | 1974 | 99,737 | 1973 | 99,291 | 1972 | 97,604 | 1971 | 94,240 | 1970 | 89,223 | 1969 | 83,190 | 1968 | 76,437 | 1967 | 69,585 | 1966 | 64,272 | 1965 | 61,694 | 1964 | 61,872 | 1963 | 64,459 | 1962 | 68,678 | 1961 | 73,127 | 1960 | 76,433 |
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