35% (2023)

70% (1993)

45% (2004)

59% (1980)

64% (2023)

61% (2020)

44% (1977)

48% (2018)

72% (2019)

39% (2015)

34% (2012)

61% (1971)

50% (1958)

42% (2014)

38% (2010)

49% (2023)

65% (2020)

59% (2021)

59% (2016)

45% (2007)