75% (2006)

73% (2014)

67% (1992)

58% (2015)

61% (1992)

70% (2012)

51% (2004)

59% (2004)

63% (2006)

52% (1991)

63% (2012)

72% (2004)

55% (2004)

60% (2012)

0% (2006)

90% (1978)

48% (2012)

0% (1976)

52% (1987)

0% (1996)