Year | Value | 2022 | 172,763 | 2021 | 167,869 | 2020 | 165,298 | 2019 | 163,022 | 2018 | 160,833 | 2017 | 158,261 | 2016 | 155,090 | 2015 | 152,179 | 2014 | 149,359 | 2013 | 146,430 | 2012 | 144,345 | 2011 | 144,010 | 2010 | 146,151 | 2009 | 148,766 | 2008 | 149,044 | 2007 | 147,955 | 2006 | 147,993 | 2005 | 149,487 | 2004 | 151,894 | 2003 | 155,272 | 2002 | 159,364 | 2001 | 163,710 | 2000 | 168,221 | 1999 | 172,738 | 1998 | 175,674 | 1997 | 176,427 | 1996 | 175,373 | 1995 | 173,078 | 1994 | 170,999 | 1993 | 170,524 | 1992 | 171,382 | 1991 | 171,688 | 1990 | 169,556 | 1989 | 167,116 | 1988 | 167,283 | 1987 | 168,309 | 1986 | 168,465 | 1985 | 167,346 | 1984 | 165,694 | 1983 | 165,047 | 1982 | 165,394 | 1981 | 165,359 | 1980 | 164,092 | 1979 | 161,502 | 1978 | 157,160 | 1977 | 152,513 | 1976 | 148,744 | 1975 | 145,356 | 1974 | 142,960 | 1973 | 141,551 | 1972 | 140,016 | 1971 | 137,548 | 1970 | 134,921 | 1969 | 131,696 | 1968 | 130,441 | 1967 | 132,007 | 1966 | 133,085 | 1965 | 133,470 | 1964 | 134,582 | 1963 | 134,370 | 1962 | 130,673 | 1961 | 123,697 | 1960 | 114,283 |
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