57% (1987)

65% (2013)

61% (2012)

50% (1998)

48% (2006)

61% (2018)

60% (2019)

60% (2012)

60% (2015)

56% (2005)

72% (2010)

72% (1996)

68% (1998)

59% (2017)

55% (1986)

59% (2011)

52% (2011)

77% (1997)

48% (2017)

40% (2020)