10% (2020)

61% (2011)

45% (1982)

66% (2009)

41% (1985)

65% (1978)

35% (1987)

54% (1972)

60% (1986)

48% (2000)

31% (1991)

58% (1979)

86% (2013)

55% (1989)

70% (1970)

46% (1979)

70% (2003)

64% (1994)

71% (1990)

50% (2010)