63% (2005)

63% (2006)

58% (2008)

73% (2005)

53% (2004)

56% (2003)

54% (2007)

68% (2005)

64% (2007)

48% (2007)

62% (2006)

60% (2008)

67% (2004)

58% (2007)

70% (2008)

56% (2009)

59% (2003)

0% (1970)

55% (2007)

62% (2006)