68% (2021)

67% (2014)

63% (2000)

73% (1992)

65% (1999)

68% (2003)

67% (2012)

66% (2016)

64% (2006)

64% (2008)

58% (1994)

53% (2017)

57% (2015)

66% (2019)

60% (1996)

52% (2009)

68% (2003)

64% (2009)

52% (2005)

50% (1997)