66% (1998)

78% (1991)

69% (1993)

70% (2008)

67% (2017)

52% (2017)

70% (1983)

53% (1992)

53% (1982)

61% (1994)

59% (2012)

47% (1994)

58% (1992)

60% (2001)

50% (2010)

64% (1991)

67% (1976)

61% (2004)

67% (2000)

68% (2019)