49% (2005)

77% (2007)

68% (1980)

42% (2006)

33% (2011)

40% (2006)

45% (2006)

52% (2009)

40% (2009)

67% (2007)

40% (2004)

56% (2006)

36% (2006)

45% (2008)

37% (2002)

47% (2007)

48% (2007)

43% (2007)

16% (2003)

34% (2006)