62% (2012)

74% (2004)

64% (2012)

66% (2014)

71% (1991)

71% (2011)

61% (2001)

60% (2008)

75% (1999)

55% (2015)

50% (2009)

39% (2005)

69% (2014)

58% (2013)

73% (1995)

66% (2011)

53% (2012)

55% (2011)

56% (2003)

63% (2016)