79% (1993)

76% (2019)

67% (2000)

63% (2004)

57% (2010)

66% (1999)

64% (2006)

73% (1991)

56% (2020)

60% (2001)

56% (2002)

55% (2008)

67% (2002)

70% (1997)

67% (2017)

68% (1996)

59% (2002)

74% (2018)

62% (2012)

43% (2000)