73% (2010)

67% (2001)

71% (1992)

71% (2001)

58% (1999)

67% (2005)

77% (2000)

76% (2003)

66% (1999)

46% (1989)

49% (1987)

62% (2001)

76% (1999)

71% (2005)

47% (2001)

64% (2014)

71% (2001)

72% (2000)

64% (1995)

57% (2003)