Year | Value | 2022 | 157,219 | 2021 | 158,369 | 2020 | 160,429 | 2019 | 163,088 | 2018 | 166,254 | 2017 | 169,901 | 2016 | 172,559 | 2015 | 174,042 | 2014 | 174,516 | 2013 | 174,024 | 2012 | 172,014 | 2011 | 169,031 | 2010 | 166,895 | 2009 | 166,230 | 2008 | 166,912 | 2007 | 168,602 | 2006 | 170,288 | 2005 | 170,608 | 2004 | 169,804 | 2003 | 168,208 | 2002 | 166,783 | 2001 | 166,676 | 2000 | 167,356 | 1999 | 167,082 | 1998 | 164,517 | 1997 | 160,788 | 1996 | 157,550 | 1995 | 155,421 | 1994 | 155,785 | 1993 | 159,933 | 1992 | 166,378 | 1991 | 172,329 | 1990 | 177,520 | 1989 | 182,624 | 1988 | 187,073 | 1987 | 189,907 | 1986 | 191,813 | 1985 | 193,417 | 1984 | 194,265 | 1983 | 193,548 | 1982 | 192,946 | 1981 | 194,306 | 1980 | 196,839 | 1979 | 199,973 | 1978 | 204,015 | 1977 | 208,594 | 1976 | 212,192 | 1975 | 215,473 | 1974 | 219,618 | 1973 | 223,795 | 1972 | 226,467 | 1971 | 227,758 | 1970 | 229,766 | 1969 | 227,682 | 1968 | 217,167 | 1967 | 199,500 | 1966 | 185,094 | 1965 | 174,279 | 1964 | 167,046 | 1963 | 166,535 | 1962 | 167,824 | 1961 | 164,256 | 1960 | 160,409 |
|