68% (1993)

68% (2003)

67% (2000)

62% (1993)

63% (2013)

66% (2001)

56% (1997)

38% (1995)

62% (1999)

76% (1995)

63% (1992)

55% (1993)

61% (1994)

57% (1993)

54% (1985)

0% (2005)

45% (2008)

53% (2004)

60% (2014)

66% (2006)