74% (2001)

76% (1998)

75% (1997)

81% (2009)

75% (1990)

59% (2003)

79% (2010)

71% (2010)

46% (1995)

58% (2006)

70% (1991)

54% (2016)

60% (2001)

80% (1993)

62% (2000)

70% (2014)

0% (2002)