0% (1970)

60% (2006)

95% (2015)

60% (2018)

0% (2008)

28% (2009)

65% (1986)

50% (1981)

67% (2016)

0% (2001)

70% (1993)

0% (1996)

0% (2006)

37% (1986)

0% (2010)

0% (1994)

65% (2014)

52% (2006)

0% (1986)

35% (1980)