65% (2008)

63% (2001)

70% (2006)

58% (2004)

59% (1999)

54% (2003)

71% (2001)

57% (2008)

57% (2006)

72% (2005)

62% (2000)

67% (1995)

56% (2000)

73% (2000)

0% (1989)

75% (2006)

77% (2008)

0% (1967)

52% (2008)

0% (2000)