62% (1991)

54% (1988)

60% (1985)

46% (1992)

51% (1999)

66% (1983)

65% (1990)

56% (2008)

55% (1996)

80% (1993)

62% (1979)

0% (1999)

70% (1993)

47% (1975)

50% (2018)

58% (2001)

30% (2000)

10% (1993)

66% (2008)

50% (1977)