69% (1997)

64% (1998)

59% (1997)

43% (1995)

53% (1998)

54% (2012)

64% (2010)

72% (1992)

66% (1995)

41% (1997)

67% (1947)

82% (1996)

57% (1996)

58% (1997)

67% (2005)

60% (1993)

50% (2001)

57% (1998)

26% (1993)

0% (1996)