75% (2015)

57% (2025)

65% (2016)

80% (2007)

63% (1982)

90% (2008)

71% (1976)

48% (2000)

73% (2003)

76% (2005)

0% (2011)

82% (1996)

58% (2006)

83% (2009)

0% (2006)

76% (2009)

61% (1969)

30% (2001)

100% (1999)

58% (2006)