71% (1998)

57% (1993)

62% (1976)

0% (1997)

43% (2004)

66% (1997)

69% (1953)

64% (1958)

43% (2012)

67% (1997)

40% (1997)

10% (1992)

59% (2003)

40% (1996)

0% (1987)