40% (1996)

69% (1997)

70% (1997)

75% (1960)

41% (1976)

40% (2002)

10% (1993)

69% (1975)

41% (2010)

62% (1994)

0% (1978)

57% (1991)

61% (1967)

60% (1990)

52% (1989)

73% (1991)

34% (2007)

58% (1975)

0% (1999)

50% (1973)