69% (1997)

56% (2001)

62% (2011)

38% (2015)

60% (2013)

50% (1977)

48% (2014)

49% (2004)

57% (1974)

45% (2008)

62% (2016)

59% (1999)

80% (2023)

57% (1991)

80% (2016)

68% (2019)

66% (2003)

40% (1983)

47% (2019)

63% (2007)