67% (1998)

59% (2014)

74% (2007)

64% (2009)

61% (2000)

61% (2009)

56% (2016)

46% (2001)

55% (2002)

66% (2008)

60% (2012)

61% (2009)

59% (2016)

40% (2005)

57% (2009)

58% (2002)

55% (2001)

48% (2008)

52% (2007)

57% (2006)