| Year | Value | | 2022 | 2,260,569 | | 2021 | 2,259,766 | | 2020 | 2,233,169 | | 2019 | 2,191,264 | | 2018 | 2,131,831 | | 2017 | 2,068,262 | | 2016 | 2,021,885 | | 2015 | 1,994,667 | | 2014 | 1,973,157 | | 2013 | 1,952,767 | | 2012 | 1,932,831 | | 2011 | 1,912,528 | | 2010 | 1,890,480 | | 2009 | 1,866,943 | | 2008 | 1,841,576 | | 2007 | 1,812,266 | | 2006 | 1,779,079 | | 2005 | 1,744,801 | | 2004 | 1,710,035 | | 2003 | 1,677,328 | | 2002 | 1,649,572 | | 2001 | 1,627,672 | | 2000 | 1,612,978 | | 1999 | 1,605,063 | | 1998 | 1,602,355 | | 1997 | 1,602,957 | | 1996 | 1,604,708 | | 1995 | 1,605,569 | | 1994 | 1,602,804 | | 1993 | 1,594,205 | | 1992 | 1,578,960 | | 1991 | 1,557,352 | | 1990 | 1,527,973 | | 1989 | 1,490,830 | | 1988 | 1,449,403 | | 1987 | 1,405,258 | | 1986 | 1,359,042 | | 1985 | 1,311,146 | | 1984 | 1,261,864 | | 1983 | 1,211,778 | | 1982 | 1,162,692 | | 1981 | 1,115,671 | | 1980 | 1,070,367 | | 1979 | 1,027,273 | | 1978 | 984,205 | | 1977 | 941,666 | | 1976 | 903,725 | | 1975 | 868,349 | | 1974 | 833,718 | | 1973 | 802,954 | | 1972 | 775,121 | | 1971 | 748,061 | | 1970 | 721,704 | | 1969 | 695,936 | | 1968 | 671,513 | | 1967 | 648,653 | | 1966 | 628,258 | | 1965 | 610,372 | | 1964 | 594,878 | | 1963 | 582,214 | | 1962 | 571,512 | | 1961 | 561,199 | | 1960 | 550,534 |
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