79% (1993)

76% (2019)

73% (1991)

63% (2004)

67% (2000)

66% (1999)

57% (2010)

64% (2006)

67% (2002)

70% (1997)

55% (2020)

67% (2017)

59% (2002)

55% (2008)

67% (1996)

56% (2002)

42% (2000)

59% (2001)

62% (2012)

64% (2004)