69% (1999)

64% (2008)

15% (1994)

65% (2003)

68% (2006)

57% (1996)

52% (2012)

49% (2006)

66% (2005)

67% (2005)

67% (1974)

44% (1972)

61% (1964)

50% (2000)

47% (1966)

62% (1969)

66% (1969)

74% (1974)

42% (1982)

80% (1964)