60% (1992)

0% (1998)

60% (2000)

25% (2003)

0% (1991)

33% (2004)

100% (1989)

76% (2002)

35% (1988)

70% (2007)

54% (2011)

50% (2018)

32% (2005)

0% (2010)

70% (2006)

0% (1990)

70% (2009)

52% (2013)

20% (2008)

60% (1970)