82% (2016)

71% (1997)

81% (2009)

60% (1987)

56% (2017)

56% (1991)

56% (2001)

67% (2008)

61% (1994)

63% (2013)

57% (1994)

54% (1992)

56% (1982)

55% (1993)

59% (2014)

59% (2017)

70% (1991)

0% (1970)

0% (1970)

0% (1970)