50% (1978)

70% (2013)

50% (2016)

80% (2000)

62% (1965)

0% (1961)

64% (1952)

0% (2016)

70% (2017)

76% (2001)

60% (1975)

83% (1983)

80% (1999)

70% (1994)

70% (2018)

80% (1959)

80% (1993)

67% (1971)

60% (1976)

64% (1955)