65% (2012)

72% (2002)

65% (1999)

66% (1997)

74% (2016)

60% (1996)

50% (2004)

64% (2000)

65% (1993)

55% (2003)

63% (2013)

53% (2014)

57% (2000)

71% (2018)

52% (1996)

55% (1999)

49% (2013)