60% (1991)

53% (1994)

70% (1977)

51% (1991)

58% (1969)

90% (2018)

64% (1969)

59% (1987)

57% (1981)

54% (1971)

43% (1988)

59% (1974)

45% (2009)

66% (1973)

64% (1979)

53% (1969)

50% (1973)

58% (1982)

47% (1980)

51% (1988)