63% (1993)

34% (1978)

60% (1985)

60% (2006)

59% (1983)

52% (1987)

64% (2001)

57% (1997)

65% (2001)

63% (1986)

28% (1989)

77% (2004)

57% (2014)

61% (1999)

64% (1986)

58% (1987)

55% (2002)

58% (1989)

71% (1992)

90% (1995)