67% (2004)

66% (2003)

63% (2004)

67% (2008)

48% (2008)

66% (2007)

70% (2007)

0% (2006)

50% (2007)

59% (2005)

76% (2008)

56% (2008)

62% (2005)

46% (2009)

68% (2008)

42% (1988)

49% (2004)

51% (2007)

47% (2004)

50% (2006)