50% (1989)

71% (1972)

53% (2005)

60% (1990)

72% (2009)

58% (1977)

64% (1997)

70% (1995)

68% (2001)

0% (1960)

38% (1980)

57% (1991)

47% (2004)

50% (1995)

72% (2003)

63% (1989)

67% (1966)

56% (1996)

0% (1978)

38% (1987)