71% (2010)

64% (2004)

64% (2014)

48% (1998)

61% (1979)

59% (1979)

50% (2009)

67% (1990)

65% (1995)

63% (1983)

66% (1983)

62% (1972)

47% (1988)

42% (1995)

66% (2020)

48% (1982)

58% (1992)

53% (2010)

72% (1979)

52% (2014)