55% (1996)

57% (1990)

0% (1983)

0% (1968)

57% (2002)

70% (1956)

60% (1998)

60% (1986)

0% (1999)

15% (1982)

75% (1991)

59% (2003)

17% (1994)

56% (1991)

25% (1979)

80% (1952)

50% (1986)

60% (2004)

0% (1985)

70% (1983)