75% (1997)

66% (2012)

74% (2023)

67% (2022)

74% (2001)

77% (2014)

73% (2009)

80% (1981)

73% (2018)

73% (2011)

0% (1970)

73% (2015)

71% (2020)

70% (2006)

66% (2015)

69% (2013)

60% (2023)

78% (2006)

71% (2024)

77% (2010)