Year | Value | 2022 | 162,652 | 2021 | 162,498 | 2020 | 163,345 | 2019 | 161,494 | 2018 | 160,671 | 2017 | 160,989 | 2016 | 161,612 | 2015 | 161,423 | 2014 | 160,940 | 2013 | 160,084 | 2012 | 159,957 | 2011 | 160,434 | 2010 | 160,742 | 2009 | 160,472 | 2008 | 160,380 | 2007 | 160,218 | 2006 | 158,784 | 2005 | 155,692 | 2004 | 152,911 | 2003 | 150,123 | 2002 | 146,094 | 2001 | 141,828 | 2000 | 139,715 | 1999 | 138,648 | 1998 | 138,471 | 1997 | 138,425 | 1996 | 137,888 | 1995 | 136,713 | 1994 | 136,383 | 1993 | 137,875 | 1992 | 140,788 | 1991 | 145,402 | 1990 | 145,232 | 1989 | 149,008 | 1988 | 151,527 | 1987 | 152,919 | 1986 | 152,619 | 1985 | 153,452 | 1984 | 152,795 | 1983 | 152,460 | 1982 | 152,983 | 1981 | 155,312 | 1980 | 158,506 | 1979 | 159,996 | 1978 | 159,988 | 1977 | 157,645 | 1976 | 154,049 | 1975 | 150,408 | 1974 | 146,216 | 1973 | 141,667 | 1972 | 137,513 | 1971 | 134,683 | 1970 | 132,369 | 1969 | 129,714 | 1968 | 127,903 | 1967 | 126,737 | 1966 | 124,292 | 1965 | 120,802 | 1964 | 116,063 | 1963 | 109,684 | 1962 | 103,257 | 1961 | 97,386 | 1960 | 93,740 |
|