30% (2001)

60% (1989)

67% (1968)

0% (1992)

44% (1999)

62% (1953)

57% (1988)

30% (1997)

0% (2003)

51% (2003)

0% (1957)

0% (1988)

71% (1990)

61% (1980)

62% (1979)

77% (1992)

95% (2004)

38% (1947)

48% (1996)

95% (1967)