| Year | Value | | 2022 | 5,021,674 | | 2021 | 5,100,921 | | 2020 | 4,929,367 | | 2019 | 4,659,820 | | 2018 | 4,378,436 | | 2017 | 4,136,044 | | 2016 | 4,082,643 | | 2015 | 4,197,030 | | 2014 | 4,208,625 | | 2013 | 4,087,629 | | 2012 | 3,960,062 | | 2011 | 3,849,236 | | 2010 | 3,775,721 | | 2009 | 3,765,066 | | 2008 | 3,788,434 | | 2007 | 3,778,831 | | 2006 | 3,725,698 | | 2005 | 3,650,917 | | 2004 | 3,577,585 | | 2003 | 3,507,150 | | 2002 | 3,427,590 | | 2001 | 3,352,090 | | 2000 | 3,283,876 | | 1999 | 3,212,239 | | 1998 | 3,126,894 | | 1997 | 3,029,598 | | 1996 | 2,919,166 | | 1995 | 2,812,536 | | 1994 | 2,701,323 | | 1993 | 2,574,161 | | 1992 | 2,458,870 | | 1991 | 2,366,651 | | 1990 | 2,279,319 | | 1989 | 2,219,585 | | 1988 | 2,196,603 | | 1987 | 2,174,679 | | 1986 | 2,140,513 | | 1985 | 2,094,401 | | 1984 | 2,041,357 | | 1983 | 1,982,327 | | 1982 | 1,913,188 | | 1981 | 1,826,297 | | 1980 | 1,736,072 | | 1979 | 1,650,324 | | 1978 | 1,572,496 | | 1977 | 1,510,967 | | 1976 | 1,473,215 | | 1975 | 1,447,408 | | 1974 | 1,409,636 | | 1973 | 1,364,232 | | 1972 | 1,308,751 | | 1971 | 1,248,992 | | 1970 | 1,185,148 | | 1969 | 1,143,359 | | 1968 | 1,099,820 | | 1967 | 1,056,322 | | 1966 | 1,014,602 | | 1965 | 977,598 | | 1964 | 953,641 | | 1963 | 939,533 | | 1962 | 925,282 | | 1961 | 907,073 | | 1960 | 885,359 |
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