76% (1997)

77% (1996)

65% (1999)

69% (2022)

62% (1993)

61% (1998)

63% (1994)

77% (1995)

53% (1992)

70% (1997)

73% (1994)

64% (1991)

66% (1992)

64% (2003)

55% (1993)

62% (1997)

58% (2012)

64% (1991)

66% (1990)

51% (1998)