1 x 2015 - 2016
0 x 2010 - 2014
0 x 2009 - 2005
5 x 2000 - 2004
5 x 1999 - 1995
2 x 1994 - 1990
2 x 1989 - 1985
2 x 1984 - 1980
1 x 1979 - 1975
0 x 1974 - 1970
2 x 1969 - 1965
0 x 1964 - 1960
0 x 1959 - 1955
0 x 1954 - 1950
0 x 1949 - 1945
1 x <1945
JK, on a serious note:
1 x 2015 - 2016
0 x 2010 - 2014
0 x 2009 - 2005
5 x 2000 - 2004
5 x 1999 - 1995
2 x 1994 - 1990
2 x 1989 - 1985
2 x 1984 - 1980
2 x 1979 - 1975
0 x 1974 - 1970
2 x 1969 - 1965
0 x 1964 - 1960
0 x 1959 - 1955
0 x 1954 - 1950
0 x 1949 - 1945
0 x <1945