69% (2014)

61% (1993)

57% (1986)

62% (2005)

58% (2014)

60% (2017)

55% (1987)

54% (2014)

55% (2015)

51% (1991)

42% (1988)

0% (1985)

20% (1988)

70% (1998)

61% (1996)

20% (1987)

43% (1987)

60% (1997)

54% (1987)

0% (2009)