77% (1988)

82% (2008)

80% (1997)

0% (1990)

65% (2003)

60% (1991)

77% (2009)

72% (2006)

62% (2014)

69% (2000)

10% (1993)

72% (1997)

63% (1996)

53% (1994)

78% (2007)

0% (1992)

70% (1995)

93% (1995)