69% (1991)

59% (2010)

51% (2014)

62% (2005)

67% (1990)

64% (2015)

63% (2014)

63% (2014)

65% (2012)

69% (2023)

74% (2024)

72% (2021)

61% (2016)

60% (2015)

67% (2017)

62% (2018)

69% (2017)

70% (2012)

70% (2009)

61% (2005)