68% (2017)

64% (1992)

59% (2014)

64% (2016)

70% (1990)

71% (1994)

58% (2001)

67% (1985)

69% (2012)

60% (2019)

59% (2004)

64% (2006)

55% (2010)

69% (2016)

59% (2007)

64% (2010)

52% (2006)

72% (1988)

45% (2015)

57% (1998)