67% (2004)

63% (2004)

68% (2008)

67% (2003)

70% (2007)

59% (2005)

48% (2008)

49% (2004)

44% (2009)

55% (2005)

58% (2008)

47% (2004)

50% (2007)

76% (2008)

62% (2005)

51% (2007)

68% (2008)

47% (1988)

49% (2008)

50% (2006)