69% (1994)

70% (2002)

76% (2018)

70% (2017)

62% (2012)

69% (2005)

65% (2019)

71% (1975)

54% (1993)

46% (1986)

64% (1999)

66% (1995)

70% (2006)

70% (1985)

72% (2013)

30% (2015)

62% (1993)

70% (2014)

58% (1987)

50% (1988)