52% (1971)

50% (1991)

0% (1964)

61% (1969)

0% (1987)

59% (2018)

50% (1977)

50% (2007)

53% (1982)

60% (1990)

57% (2008)

78% (2014)

55% (2000)

71% (2003)

61% (1978)

0% (2008)

68% (1969)

0% (1997)

48% (1982)

61% (2001)