66% (1993)

35% (1996)

70% (1995)

48% (2002)

43% (2005)

0% (1949)

68% (1976)

0% (1953)

53% (2001)

60% (1996)

29% (1979)

50% (1994)

35% (1971)

0% (1995)

50% (1991)

40% (1995)

57% (1996)

48% (1996)

50% (1997)

57% (1974)