61% (2015)

58% (2010)

66% (2014)

65% (1999)

20% (1978)

50% (1985)

49% (2013)

47% (1981)

62% (1979)

73% (1966)

41% (1983)

61% (1979)

20% (1985)

70% (1956)

59% (1979)

53% (1977)

50% (1981)

65% (1984)

60% (2011)

50% (1984)