1960s
1968
2 枚
100%
0%
1969
4 枚
100%
0%
1970s
1970
17 枚
76%
24%
1971
28 枚
75%
25%
1972
38 枚
76%
24%
1973
41 枚
90%
10%
1974
62 枚
84%
16%
1975
60 枚
78%
22%
1976
41 枚
80%
20%
1977
37 枚
86%
14%
1978
30 枚
87%
13%
1979
26 枚
81%
19%
1980s
1980
22 枚
86%
14%
1981
12 枚
92%
8%
1982
8 枚
88%
12%
1983
11 枚
100%
0%
1984
14 枚
71%
29%
1985
6 枚
83%
17%
1986
2 枚
100%
0%
1987
6 枚
67%
33%
1988
4 枚
100%
0%
1989
5 枚
100%
0%
1990s
1990
10 枚
100%
0%
1991
7 枚
86%
14%
1992
10 枚
100%
0%
1993
5 枚
100%
0%
1994
15 枚
93%
7%
1995
6 枚
100%
0%
1996
19 枚
100%
0%
1997
11 枚
91%
9%
1998
6 枚
100%
0%
1999
10 枚
80%
20%
2000s
2000
12 枚
100%
0%
2001
6 枚
100%
0%
2002
15 枚
93%
7%
2003
11 枚
100%
0%
2004
8 枚
100%
0%
2005
20 枚
100%
0%
2006
6 枚
100%
0%
2007
13 枚
100%
0%
2008
8 枚
100%
0%
2009
12 枚
100%
0%
2010s
2010
14 枚
100%
0%
2011
14 枚
100%
0%
2012
14 枚
100%
0%
2013
19 枚
100%
0%
2014
29 枚
100%
0%
2015
24 枚
96%
4%
2016
15 枚
100%
0%
2017
13 枚
100%
0%
2018
15 枚
100%
0%
2019
17 枚
100%
0%
2020s
2020
6 枚
100%
0%
2021
6 枚
100%
0%
2022
13 枚
100%
0%
2023
9 枚
100%
0%
2024
6 枚
100%
0%
2025
2 枚
100%
0%