4
2013
2
4
6
8
10
12
5
1951
1
4
5
1953
1
4
5
1955
0
1
4
4
1958
0
2
4
6
1961
0
1
3
5
1964
0
2
3
5
1967
0
2
3
6
1970
1
0
3
5
1974
0
1
4
5
1975
0
1
4
4
1977
1
1
4
4
1980
1
1
4
5
1983
1
1
3
6
1984
1
0
1
4
5
1987
1
1
1
4
6
1990
2
0
1
3
6
1993
1
2
3
5
1996
1
2
4
5
1998
0
2
1
4
5
2001
1
1
1
4
5
2004
1
0
2
4
6
2007
0
0
2
4
5
2010
1
0
2
4
4
2013
1
0
1
2
4
