76% (2021)

74% (2003)

64% (1997)

49% (2004)

35% (2014)

64% (2021)

63% (2011)

57% (2013)

60% (2005)

52% (2002)

73% (2008)

59% (2009)

59% (2010)

67% (1999)

36% (2011)

50% (2011)

48% (2013)

58% (1994)

71% (1992)

65% (2002)