60% (2004)

70% (2011)

70% (2009)

59% (2010)

68% (2004)

53% (2006)

64% (2009)

70% (2009)

57% (2004)

75% (2002)

63% (2001)

72% (2004)

67% (2006)

60% (2009)

59% (2007)

60% (2011)

65% (2012)

65% (2004)

66% (2009)

62% (2011)