75% (1996)

74% (1999)

59% (1995)

40% (2011)

62% (2008)

42% (1996)

53% (2005)

0% (1993)

0% (2013)

55% (1987)

60% (1982)

0% (1990)

80% (2015)

0% (2015)

63% (2006)

80% (2017)

0% (2000)

0% (2009)

0% (2010)

0% (2010)