70% (2003)

45% (2010)

68% (1990)

66% (1980)

69% (1994)

69% (1991)

65% (2008)

69% (2012)

57% (1993)

52% (2004)

71% (1993)

60% (2017)

60% (1993)

60% (1996)

65% (2016)

65% (1993)

53% (1994)

54% (1986)

37% (2000)

74% (1999)