Year Milne AstWie VertWie Grenet GeoSP GeoLP STS2 Bull. 1903 BO x 1904 x 1905 x 1906 x 1907 x 1908 x 1909 x P 1910 x P 1911 x P 1912 x P 1913 x P 1914 x P 1915 x BO x P 1916 x x P 1917 x x P 1918 x x P 1919 x x P 1920 x x P 1921 x x P 1922 x P 1923 x P 1924 x x 1925 x 1926 x x BO 1927 x 1928 x 1929 x 1930 x 1931 x 1932 x 1933 x x 1934 x 1935 x 1936 x 1937 1938 x 1939 x 1940 x 1941 x P 1942 1943 x 1944 1945 FNP 1946 x 1947 1948 x 1949 x x 1950 1951 x x FNP 1952 x x FNP 1953 x x FNP 1954 x x 1955 x x FNP 1956 x x FNP 1957 x x FNP 1958 x x FNP 1959 x x FNP 1960 x x FNP 1961 BO FNP 1962 x x x FNP 1963 x x x FNP 1964 x x x A 1965 x x x A 1966 x x x A 1967 x x x A 1968 x x x A 1969 x x x A 1970 x A 1971 x A 1972 x x BO x 1973 x x x P 1974 x x x BO x 1975 x x x x A 1976 x x x x P 1977 x x x x P 1978 x x x x P 1979 x x x x * 1980 * 1981 x x x 1982 x x x 1983 x x x 1984 x x x 1985 x x x * 1986 x x * 1987 x x 1988 x x 1989 x x 1990 x x 1991 x x 1992 x x 1993 x x 1994 x x 1995 x x 1996 x x 1997 x x 1998 x x 1999 x x 2000 x x 2001 x x 2002 x x 2003 x x 2004 x x 2005 x x 2006 x x 2007 x x BO x 2008 x x x 2009 x x x 2010 x x x 2011 x x x 2012 x x x