71% (1990)

81% (1995)

72% (1995)

55% (2010)

78% (1998)

73% (2011)

68% (2015)

60% (2003)

73% (2012)

70% (2019)

58% (2001)

73% (2017)

50% (2017)

60% (2016)

80% (2007)

66% (2014)

70% (2008)

70% (2019)

50% (2017)

68% (2005)