68% (2001)

74% (2006)

61% (2011)

69% (2022)

61% (1975)

55% (1985)

70% (2016)

58% (2008)

60% (2010)

42% (2018)

61% (2015)

69% (1978)

42% (1996)

63% (2001)

67% (1971)

59% (2010)

60% (1996)

70% (2023)

62% (2014)

64% (2005)