75% (2010)

64% (2013)

54% (2011)

63% (2017)

56% (2011)

57% (2015)

55% (2012)

61% (2009)

66% (2010)

56% (2011)

55% (2001)

64% (2010)

61% (2007)

64% (2006)

57% (2012)

46% (2008)

59% (2008)

56% (2012)

51% (2000)

56% (2008)