75% (2015)

68% (2003)

65% (2009)

68% (2006)

60% (2016)

59% (2016)

64% (2000)

61% (2000)

63% (2012)

66% (2005)

56% (2006)

61% (2009)

65% (2009)

66% (2006)

55% (2003)

67% (2006)

70% (1999)

62% (2003)

73% (2011)

80% (2004)