55% (1988)

37% (1983)

55% (1984)

85% (2006)

70% (1998)

50% (1979)

65% (2012)

72% (1978)

65% (1987)

71% (1998)

60% (2004)

35% (1965)

58% (1993)

60% (1992)

62% (2012)

45% (2004)

66% (2021)

52% (2010)

59% (2015)

35% (1996)