49% (2008)

60% (2005)

69% (2008)

45% (2011)

47% (2007)

42% (2007)

61% (2007)

45% (2007)

55% (2005)

51% (2007)

65% (2006)

57% (2007)

60% (2009)

58% (2005)

62% (2005)

64% (2006)

59% (1995)

33% (1993)

60% (1997)

67% (2008)