54% (2004)

50% (2005)

45% (2001)

60% (2011)

55% (2005)

63% (2006)

65% (2001)

62% (2009)

39% (2004)

72% (1995)

53% (2003)

61% (2004)

58% (1996)

30% (2006)

45% (2007)

0% (1992)

53% (2003)

51% (2005)

62% (2004)

65% (2007)