50% (1984)

55% (1961)

70% (1979)

60% (2006)

53% (1975)

0% (1990)

66% (1992)

0% (1990)

0% (2000)

69% (2002)

74% (1979)

0% (1979)

61% (1959)

0% (1991)

50% (1975)

0% (1999)

55% (1994)

0% (1961)

0% (1991)

80% (1994)