79% (1993)

73% (1991)

67% (2000)

77% (2019)

67% (2002)

51% (2013)

42% (2000)

62% (2004)

56% (2010)

56% (2020)

65% (1999)

63% (2006)

70% (1997)

67% (2017)

58% (2002)

62% (1995)

59% (2001)

67% (1996)

55% (2008)

74% (2018)