72% (2011)

60% (2016)

63% (2018)

80% (2004)

66% (2009)

60% (2006)

60% (2006)

56% (2005)

57% (2009)

63% (2007)

70% (1999)

61% (2000)

62% (2003)

55% (2003)

63% (2012)

64% (2000)

68% (1996)

60% (2014)

59% (2008)

61% (2003)