54% (1992)

38% (2008)

80% (2012)

20% (2000)

60% (1998)

54% (1989)

47% (2015)

67% (2005)

77% (2016)

88% (1996)

85% (1970)

78% (2013)

65% (2003)

77% (2012)

70% (2013)

63% (2001)

97% (2013)

70% (1994)

48% (1996)

0% (1970)