67% (1999)

65% (2008)

56% (2007)

67% (2000)

64% (2006)

72% (2005)

60% (2005)

57% (2007)

66% (2012)

72% (2002)

61% (2011)

67% (2016)

62% (2007)

68% (2004)

59% (2002)

55% (2010)

54% (2006)

60% (2002)

69% (2011)

63% (2002)