64% (2008)

69% (1999)

65% (2003)

66% (2005)

20% (1994)

52% (2012)

67% (2005)

61% (1964)

68% (2006)

54% (1960)

47% (1966)

60% (1971)

55% (1983)

50% (2000)

67% (1977)

57% (1996)

49% (2006)

44% (1972)

62% (1976)

0% (2001)