| Year | Value | | 2022 | 2,085,136 | | 2021 | 1,989,733 | | 2020 | 1,898,354 | | 2019 | 1,811,492 | | 2018 | 1,729,020 | | 2017 | 1,646,871 | | 2016 | 1,559,867 | | 2015 | 1,467,250 | | 2014 | 1,374,348 | | 2013 | 1,286,254 | | 2012 | 1,207,837 | | 2011 | 1,150,473 | | 2010 | 1,118,523 | | 2009 | 1,105,402 | | 2008 | 1,097,053 | | 2007 | 1,085,636 | | 2006 | 1,065,206 | | 2005 | 1,029,212 | | 2004 | 986,047 | | 2003 | 952,973 | | 2002 | 928,734 | | 2001 | 897,377 | | 2000 | 855,440 | | 1999 | 809,460 | | 1998 | 764,366 | | 1997 | 723,482 | | 1996 | 686,875 | | 1995 | 650,425 | | 1994 | 612,769 | | 1993 | 575,843 | | 1992 | 541,720 | | 1991 | 512,472 | | 1990 | 487,663 | | 1989 | 464,283 | | 1988 | 442,553 | | 1987 | 423,726 | | 1986 | 406,593 | | 1985 | 390,604 | | 1984 | 376,023 | | 1983 | 362,952 | | 1982 | 351,096 | | 1981 | 340,509 | | 1980 | 331,249 | | 1979 | 323,200 | | 1978 | 316,199 | | 1977 | 309,565 | | 1976 | 302,207 | | 1975 | 293,696 | | 1974 | 284,307 | | 1973 | 274,048 | | 1972 | 263,414 | | 1971 | 253,570 | | 1970 | 245,166 | | 1969 | 238,105 | | 1968 | 232,375 | | 1967 | 227,337 | | 1966 | 221,445 | | 1965 | 214,011 | | 1964 | 205,323 | | 1963 | 195,288 | | 1962 | 184,506 | | 1961 | 175,017 | | 1960 | 168,132 |
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