62% (2015)

56% (2010)

57% (2011)

58% (2009)

64% (2007)

67% (2007)

64% (2013)

57% (2012)

70% (2006)

71% (2018)

68% (2020)

55% (2015)

57% (1989)

64% (2019)

74% (2008)

51% (2009)

66% (2016)

60% (2004)

66% (2013)

49% (1999)