35% (2002)

38% (1994)

35% (1980)

63% (1995)

10% (1992)

38% (1978)

0% (2012)

43% (1980)

0% (1971)

47% (1981)

65% (1989)

70% (1979)

0% (1983)

62% (1991)

65% (1981)

56% (2011)

67% (1992)

0% (1972)

54% (2003)

70% (1977)