58% (1997)

38% (1988)

61% (1983)

40% (1992)

0% (1994)

40% (1982)

0% (1991)

0% (1966)

0% (2015)

60% (2004)

50% (1981)

40% (1977)

0% (1960)

47% (2013)

70% (1976)

58% (2012)

60% (1992)

0% (1993)

0% (1956)

38% (2007)