60% (2009)

46% (2008)

53% (2008)

50% (2009)

43% (2009)

42% (2009)

56% (2006)

67% (2009)

63% (2007)

59% (2009)

53% (2008)

58% (2005)

62% (2006)

48% (2010)

47% (2008)

48% (2008)

55% (2007)

46% (2008)

44% (2004)

54% (2008)