0% (1975)

0% (1985)

60% (1988)

90% (1994)

90% (1991)

60% (1998)

78% (2011)

0% (1989)

93% (2011)

80% (2016)

0% (1997)

100% (1984)

80% (2014)

0% (1986)

50% (1999)

0% (1982)

60% (1999)

0% (2012)

0% (2001)

50% (1997)