74% (2006)

54% (1994)

42% (2014)

0% (1970)

58% (1996)

52% (1990)

64% (2016)

70% (1992)

70% (1987)

71% (1984)

72% (1993)

70% (2007)

60% (1994)

56% (1993)

70% (1981)

52% (1973)

70% (1987)

63% (2009)

53% (1975)

41% (1991)