75% (2010)

72% (2007)

76% (2003)

68% (2000)

70% (2010)

80% (2009)

70% (2005)

60% (2001)

64% (2004)

65% (2006)

63% (2009)

47% (2002)

66% (2004)

66% (2013)

61% (2003)

65% (2008)

52% (2007)

67% (2002)

67% (2016)

60% (2005)