69% (1994)

62% (2012)

71% (1975)

66% (1995)

64% (1999)

46% (1986)

70% (2017)

30% (2015)

62% (1993)

58% (1987)

70% (1985)

72% (2013)

70% (2014)

50% (1988)

64% (2007)

35% (2011)

70% (2018)

0% (2002)

0% (1970)

58% (2018)