82% (1988)

80% (1992)

58% (1987)

32% (2006)

0% (2003)

63% (2005)

53% (2006)

100% (1990)

90% (2020)

0% (1989)

82% (2015)

78% (2015)

84% (1990)

0% (1994)

68% (2002)

0% (2012)

75% (2005)

70% (1998)

85% (1997)

100% (1992)