50% (1984)

0% (2001)

70% (2005)

0% (1981)

80% (2006)

10% (1988)

100% (1985)

50% (2006)

0% (2005)

0% (1985)

0% (2018)

10% (1992)

40% (2003)

0% (2018)

10% (1998)

52% (2008)

10% (2004)

39% (2009)

0% (2012)

45% (2002)