72% (2011)

70% (2018)

63% (2015)

62% (2006)

75% (2001)

65% (2017)

55% (2015)

75% (2014)

60% (2016)

61% (2012)

72% (2012)

67% (2007)

70% (2016)

66% (2004)

67% (2008)

57% (2003)

66% (2000)

53% (2016)

60% (2005)

78% (2003)