Year | Value | 2022 | 42,450,429 | 2021 | 42,146,923 | 2020 | 42,128,351 | 2019 | 42,096,607 | 2018 | 42,006,470 | 2017 | 41,890,094 | 2016 | 41,750,423 | 2015 | 41,441,710 | 2014 | 41,123,008 | 2013 | 40,998,376 | 2012 | 40,939,379 | 2011 | 40,917,407 | 2010 | 41,739,548 | 2009 | 41,860,223 | 2008 | 42,021,256 | 2007 | 42,149,394 | 2006 | 42,244,938 | 2005 | 42,322,242 | 2004 | 42,364,698 | 2003 | 42,384,876 | 2002 | 42,368,228 | 2001 | 42,300,074 | 2000 | 42,230,577 | 1999 | 42,177,771 | 1998 | 42,160,050 | 1997 | 42,170,094 | 1996 | 42,135,110 | 1995 | 42,051,246 | 1994 | 41,977,348 | 1993 | 41,891,684 | 1992 | 41,683,658 | 1991 | 41,439,791 | 1990 | 41,215,948 | 1989 | 40,940,456 | 1988 | 40,700,023 | 1987 | 40,611,082 | 1986 | 40,611,843 | 1985 | 40,646,582 | 1984 | 40,780,265 | 1983 | 40,957,694 | 1982 | 41,097,244 | 1981 | 41,164,296 | 1980 | 41,124,817 | 1979 | 41,058,397 | 1978 | 41,055,781 | 1977 | 41,105,188 | 1976 | 41,211,816 | 1975 | 41,402,143 | 1974 | 41,570,269 | 1973 | 41,567,427 | 1972 | 41,451,596 | 1971 | 41,274,359 | 1970 | 41,222,965 | 1969 | 41,111,215 | 1968 | 40,815,238 | 1967 | 40,667,271 | 1966 | 40,518,302 | 1965 | 40,221,166 | 1964 | 39,921,540 | 1963 | 39,646,129 | 1962 | 39,327,825 | 1961 | 39,034,294 | 1960 | 38,788,660 |
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