60% (1970)

0% (1993)

55% (2005)

60% (1991)

62% (1985)

70% (1982)

0% (2010)

40% (2003)

54% (1989)

0% (2005)

10% (1990)

100% (2015)

0% (1971)

40% (2005)

61% (2004)

64% (1999)

80% (2013)

57% (1998)

60% (2002)

69% (1965)