75% (2006)

67% (1992)

73% (2014)

58% (2015)

70% (2012)

51% (2004)

52% (1991)

0% (2006)

59% (2004)

63% (2012)

63% (2006)

61% (1992)

52% (1987)

55% (2004)

48% (2012)

0% (1976)

0% (2007)

72% (2004)

90% (1978)

60% (2012)