76% (1996)

62% (1998)

70% (2022)

76% (1995)

70% (1997)

62% (1993)

76% (1997)

65% (1999)

53% (1992)

63% (1994)

73% (1994)

58% (2012)

64% (1991)

51% (1998)

67% (1990)

52% (1994)

63% (1997)

65% (1992)

64% (1991)

70% (2000)