54% (2004)

62% (2009)

39% (2004)

63% (2006)

60% (2011)

61% (2004)

72% (2006)

62% (2008)

58% (2007)

55% (2005)

67% (2001)

65% (2007)

40% (2007)

45% (2001)

60% (2008)

0% (2006)

50% (2005)

53% (2003)

60% (1995)

70% (2002)