58% (1993)

53% (2001)

50% (1959)

0% (1995)

63% (1989)

81% (1954)

40% (1984)

0% (1996)

57% (1990)

70% (1991)

58% (2003)

33% (1993)

55% (1999)

70% (1997)

63% (1997)

0% (1958)

65% (1982)

57% (1992)

59% (1977)

55% (2006)