42% (1987)

60% (1988)

70% (1996)

72% (1985)

70% (1990)

65% (2018)

60% (1994)

65% (1976)

61% (1990)

60% (1967)

69% (2013)

53% (2007)

80% (1979)

60% (1971)

80% (2016)

66% (2018)

30% (2017)

85% (2002)

0% (1965)

70% (1982)