67% (1991)

75% (1992)

64% (2004)

90% (1995)

66% (1992)

64% (2005)

70% (1992)

71% (1992)

75% (1992)

55% (1977)

60% (2006)

63% (1986)

67% (1992)

57% (2014)

67% (1992)

70% (1992)

66% (1992)

63% (1986)

61% (2003)

68% (1992)