71% (2003)

71% (2005)

59% (2004)

61% (2013)

56% (2007)

64% (2004)

56% (2009)

74% (2004)

64% (2009)

51% (2002)

73% (2007)

56% (2007)

40% (2006)

63% (2012)

46% (2011)

52% (2011)

37% (2001)

55% (2010)

42% (2010)

64% (2016)