Year | Value | 2022 | 11,430,780 | 2021 | 13,253,360 | 2020 | 13,412,612 | 2019 | 13,549,776 | 2018 | 13,675,909 | 2017 | 13,787,367 | 2016 | 13,882,141 | 2015 | 13,970,207 | 2014 | 14,048,855 | 2013 | 14,158,653 | 2012 | 14,233,330 | 2011 | 14,311,033 | 2010 | 14,405,248 | 2009 | 14,505,878 | 2008 | 14,652,281 | 2007 | 14,814,625 | 2006 | 14,986,596 | 2005 | 15,172,576 | 2004 | 15,375,750 | 2003 | 15,574,112 | 2002 | 15,770,402 | 2001 | 15,969,540 | 2000 | 16,156,939 | 1999 | 16,339,766 | 1998 | 16,514,088 | 1997 | 16,681,546 | 1996 | 16,854,180 | 1995 | 17,024,465 | 1994 | 17,179,753 | 1993 | 17,284,882 | 1992 | 17,295,680 | 1991 | 17,266,246 | 1990 | 17,250,258 | 1989 | 17,231,090 | 1988 | 17,311,571 | 1987 | 17,526,818 | 1986 | 17,752,120 | 1985 | 17,983,375 | 1984 | 18,220,686 | 1983 | 18,453,837 | 1982 | 18,690,449 | 1981 | 18,933,317 | 1980 | 19,143,510 | 1979 | 19,358,207 | 1978 | 19,599,657 | 1977 | 19,863,404 | 1976 | 20,112,401 | 1975 | 20,344,528 | 1974 | 20,558,940 | 1973 | 20,775,945 | 1972 | 20,978,152 | 1971 | 21,156,251 | 1970 | 21,355,490 | 1969 | 21,596,073 | 1968 | 21,826,671 | 1967 | 22,032,079 | 1966 | 22,217,881 | 1965 | 22,398,983 | 1964 | 22,560,586 | 1963 | 22,646,965 | 1962 | 22,711,734 | 1961 | 22,748,527 | 1960 | 22,755,599 |
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