| Year | Value | | 2022 | 1,501,057 | | 2021 | 1,538,604 | | 2020 | 1,529,106 | | 2019 | 1,505,051 | | 2018 | 1,473,806 | | 2017 | 1,437,826 | | 2016 | 1,392,096 | | 2015 | 1,343,006 | | 2014 | 1,296,551 | | 2013 | 1,254,042 | | 2012 | 1,218,848 | | 2011 | 1,193,806 | | 2010 | 1,179,995 | | 2009 | 1,183,886 | | 2008 | 1,197,954 | | 2007 | 1,220,946 | | 2006 | 1,251,275 | | 2005 | 1,291,625 | | 2004 | 1,343,863 | | 2003 | 1,405,035 | | 2002 | 1,470,434 | | 2001 | 1,532,384 | | 2000 | 1,571,846 | | 1999 | 1,607,774 | | 1998 | 1,617,966 | | 1997 | 1,616,594 | | 1996 | 1,607,084 | | 1995 | 1,588,633 | | 1994 | 1,559,377 | | 1993 | 1,527,918 | | 1992 | 1,491,568 | | 1991 | 1,439,355 | | 1990 | 1,347,206 | | 1989 | 1,232,118 | | 1988 | 1,115,501 | | 1987 | 1,002,390 | | 1986 | 920,215 | | 1985 | 897,913 | | 1984 | 922,158 | | 1983 | 951,166 | | 1982 | 982,612 | | 1981 | 1,013,499 | | 1980 | 1,036,061 | | 1979 | 1,048,327 | | 1978 | 1,057,848 | | 1977 | 1,072,995 | | 1976 | 1,091,145 | | 1975 | 1,112,821 | | 1974 | 1,134,786 | | 1973 | 1,149,738 | | 1972 | 1,146,164 | | 1971 | 1,119,712 | | 1970 | 1,088,403 | | 1969 | 1,053,939 | | 1968 | 1,017,185 | | 1967 | 988,695 | | 1966 | 960,315 | | 1965 | 925,293 | | 1964 | 884,238 | | 1963 | 816,282 | | 1962 | 730,693 | | 1961 | 662,763 | | 1960 | 609,756 |
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