“…1911, 1921, 1933, 1947, 1954, 1966, 1971, 1981, 1991, 2006Austria 1951, 1991Belgium 1992, 2005 Canada From 1852 to 1911 the data is from Quebec, Pouyez and Lavoie (1983);1921, 1931, 1941, 1951, 1961, 1971, 1981, 1991, 1995, 2006Czechoslovakia 1947, 1990, 1995, 2005 Denmark 1840 and 1847, Matthiessen (1985);1950, 1981, 1940, 1990, 1995, 2005 England and Wales From 1543 to 1850 using inverse projection techniques, Anderson et al (2001);1939, 1951, 1991, 1995Finland 1991France From 1740to 1911, Weir (19941946, 1954, 1990, 2008Germany 1946…”