37% (1995)

72% (1986)

51% (1991)

56% (2002)

70% (1997)

62% (1996)

56% (2003)

61% (1989)

42% (1986)

77% (1992)

72% (1988)

70% (1992)

73% (1987)

74% (2012)

55% (1993)

55% (1988)

70% (1989)

67% (1986)

53% (1989)

43% (1990)