77% (1975)

71% (2023)

60% (2012)

71% (2008)

66% (2010)

46% (1988)

66% (2013)

70% (2020)

70% (2003)

48% (1974)

62% (1999)

53% (1987)

68% (2019)

61% (2015)

55% (2008)

49% (2015)

58% (2014)

58% (2013)

62% (2023)

69% (2016)