Year | Value | 2022 | 164,921 | 2021 | 162,662 | 2020 | 162,882 | 2019 | 164,450 | 2018 | 165,674 | 2017 | 167,069 | 2016 | 168,108 | 2015 | 168,251 | 2014 | 168,018 | 2013 | 167,911 | 2012 | 167,929 | 2011 | 167,472 | 2010 | 166,431 | 2009 | 164,847 | 2008 | 163,039 | 2007 | 160,017 | 2006 | 155,665 | 2005 | 150,885 | 2004 | 145,918 | 2003 | 141,538 | 2002 | 138,735 | 2001 | 137,081 | 2000 | 136,099 | 1999 | 135,846 | 1998 | 135,900 | 1997 | 135,730 | 1996 | 136,028 | 1995 | 137,684 | 1994 | 140,632 | 1993 | 144,735 | 1992 | 150,189 | 1991 | 156,196 | 1990 | 160,982 | 1989 | 165,383 | 1988 | 169,240 | 1987 | 170,878 | 1986 | 171,270 | 1985 | 171,678 | 1984 | 171,176 | 1983 | 169,130 | 1982 | 166,498 | 1981 | 163,837 | 1980 | 161,060 | 1979 | 158,812 | 1978 | 157,691 | 1977 | 157,408 | 1976 | 157,429 | 1975 | 157,796 | 1974 | 157,732 | 1973 | 157,237 | 1972 | 156,933 | 1971 | 155,837 | 1970 | 154,551 | 1969 | 154,301 | 1968 | 154,995 | 1967 | 156,498 | 1966 | 159,706 | 1965 | 162,440 | 1964 | 162,808 | 1963 | 160,156 | 1962 | 153,686 | 1961 | 143,254 | 1960 | 132,375 |
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