67% (1991)

55% (1998)

61% (2012)

66% (2012)

54% (1986)

69% (2017)

63% (1992)

70% (1988)

58% (1996)

68% (1990)

68% (2009)

74% (1993)

62% (1991)

69% (1984)

42% (2002)

70% (1992)

31% (1992)

61% (1993)

44% (1994)

71% (2020)