| Year | Value | | 2022 | 4,019,690 | | 2021 | 3,950,483 | | 2020 | 3,893,915 | | 2019 | 3,846,016 | | 2018 | 3,800,936 | | 2017 | 3,753,682 | | 2016 | 3,706,696 | | 2015 | 3,655,786 | | 2014 | 3,597,636 | | 2013 | 3,530,501 | | 2012 | 3,449,178 | | 2011 | 3,350,798 | | 2010 | 3,236,857 | | 2009 | 3,114,620 | | 2008 | 2,988,802 | | 2007 | 2,861,038 | | 2006 | 2,731,942 | | 2005 | 2,602,786 | | 2004 | 2,485,003 | | 2003 | 2,388,552 | | 2002 | 2,313,337 | | 2001 | 2,249,650 | | 2000 | 2,192,340 | | 1999 | 2,142,235 | | 1998 | 2,089,737 | | 1997 | 2,029,871 | | 1996 | 1,965,936 | | 1995 | 1,899,573 | | 1994 | 1,831,887 | | 1993 | 1,764,067 | | 1992 | 1,704,549 | | 1991 | 1,648,352 | | 1990 | 1,588,114 | | 1989 | 1,531,222 | | 1988 | 1,478,262 | | 1987 | 1,428,032 | | 1986 | 1,379,187 | | 1985 | 1,330,920 | | 1984 | 1,286,197 | | 1983 | 1,243,072 | | 1982 | 1,196,199 | | 1981 | 1,147,086 | | 1980 | 1,098,796 | | 1979 | 1,056,838 | | 1978 | 1,022,957 | | 1977 | 993,121 | | 1976 | 964,325 | | 1975 | 935,995 | | 1974 | 908,463 | | 1973 | 881,560 | | 1972 | 855,157 | | 1971 | 830,516 | | 1970 | 807,045 | | 1969 | 784,198 | | 1968 | 762,995 | | 1967 | 742,998 | | 1966 | 723,177 | | 1965 | 703,083 | | 1964 | 682,909 | | 1963 | 662,459 | | 1962 | 642,216 | | 1961 | 623,481 | | 1960 | 606,032 |
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