79% (1987)

76% (2000)

72% (2006)

74% (1994)

70% (2010)

65% (2013)

72% (1999)

49% (1995)

54% (1995)

73% (2005)

63% (2019)

55% (2014)

32% (2019)

60% (1986)

60% (2002)

0% (2016)

50% (2007)

61% (2016)

60% (2015)

49% (2019)