80% (1985)

73% (2019)

62% (2008)

60% (2009)

42% (2011)

50% (2010)

27% (2015)

0% (1982)

0% (2005)

0% (1987)

70% (1978)

53% (1996)

77% (2014)

60% (2006)

71% (1991)

57% (1997)

53% (2012)

52% (2004)

40% (1974)

60% (2004)