5% (1998)

80% (2014)

80% (2005)

0% (2003)

0% (1987)

20% (1990)

0% (1968)

0% (1971)

56% (2003)

100% (1970)

40% (2018)

61% (2007)

54% (2012)

64% (2011)

20% (1999)

0% (1968)

65% (2011)

0% (2016)

70% (2008)

55% (2015)