67% (2001)

73% (2010)

71% (1992)

71% (2001)

77% (1999)

77% (2000)

66% (2005)

62% (2001)

70% (2005)

68% (2001)

71% (2001)

55% (2003)

66% (1995)

42% (2005)

71% (2001)

57% (2003)

58% (2006)

68% (2007)

64% (1995)

61% (1990)