79% (1999)

58% (1996)

0% (1964)

72% (1997)

57% (2006)

72% (1996)

68% (2001)

70% (2003)

58% (2004)

69% (1998)

69% (1999)

76% (2000)

48% (1998)

58% (1999)

53% (2005)

42% (1999)

65% (2002)

67% (1997)

80% (1998)

56% (1997)