30% (1993)

20% (1994)

80% (2000)

100% (2017)

50% (1973)

60% (1992)

25% (2001)

0% (2001)

0% (1994)

60% (2000)

60% (2008)

0% (1992)

0% (1993)

0% (2006)

68% (2012)

10% (1992)

37% (1957)

60% (1994)

0% (1993)

50% (2010)