49% (2008)

45% (2007)

46% (2007)

45% (2011)

51% (2007)

61% (2007)

43% (2007)

60% (2009)

59% (1995)

69% (2008)

63% (2005)

55% (2005)

65% (2006)

59% (2005)

66% (2006)

67% (2006)

59% (2005)

33% (1993)

57% (2007)

60% (1997)