71% (2013)

61% (2002)

64% (2009)

66% (2006)

56% (1999)

57% (2013)

62% (2004)

64% (2010)

61% (1991)

65% (2015)

77% (2020)

72% (2011)

38% (1991)

56% (1990)

61% (1995)

65% (2021)

68% (1993)

71% (2005)

63% (2018)

69% (2016)