66% (1991)

42% (1981)

52% (2011)

52% (2008)

69% (1979)

48% (1986)

20% (1992)

49% (2011)

63% (1967)

51% (1986)

60% (1989)

61% (2008)

61% (1976)

70% (2016)

70% (1999)

0% (1973)

58% (1975)

65% (1991)

60% (1978)

64% (1989)