66% (2019)

44% (1991)

68% (2014)

45% (2008)

67% (1985)

65% (1996)

69% (2018)

63% (2010)

69% (1997)

63% (2008)

64% (1997)

59% (2000)

57% (1993)

42% (2006)

62% (1977)

70% (1978)

61% (1999)

64% (1976)

35% (1984)

45% (2005)