10% (2014)

52% (2017)

74% (1988)

80% (2003)

75% (1986)

70% (1991)

42% (2008)

62% (2000)

66% (2002)

57% (1999)

71% (2004)

40% (1990)

50% (1988)

90% (1986)

0% (1987)

40% (1988)

48% (2001)

35% (2005)

50% (1997)

0% (1970)