54% (2004)

45% (2001)

63% (2006)

53% (2003)

61% (2004)

39% (2004)

72% (2006)

72% (1995)

60% (2011)

60% (2008)

55% (2005)

38% (2010)

53% (2003)

62% (2004)

62% (2009)

45% (2007)

30% (2010)

65% (2001)

62% (2008)

58% (2007)