64% (2015)

55% (1999)

64% (2008)

66% (2008)

59% (2018)

55% (1992)

64% (2013)

62% (2007)

72% (2003)

70% (2003)

72% (2005)

63% (1997)

63% (2004)

67% (2002)

55% (1986)

56% (2006)

68% (2003)

53% (1994)

63% (1992)

59% (2014)