58% (1988)

67% (1989)

87% (2003)

50% (1977)

60% (1992)

50% (1971)

64% (2011)

67% (2003)

30% (1987)

60% (1952)

0% (1955)

71% (2015)

60% (2002)

40% (2015)

72% (1972)

0% (1952)

70% (1969)

50% (1977)

74% (1999)

60% (2002)