61% (2007)

66% (2013)

74% (2017)

52% (2005)

0% (1986)

59% (1987)

40% (1994)

35% (1991)

57% (2015)

10% (1996)

52% (1989)

65% (2014)

47% (1998)

67% (1998)

57% (2016)

57% (1994)

30% (1994)

25% (2011)

10% (1996)

52% (2007)