50% (2017)

0% (2016)

0% (1989)

72% (2000)

0% (1981)

90% (2000)

90% (1998)

80% (1999)

100% (1971)

20% (2012)

100% (1990)

78% (2018)

80% (2008)

0% (2002)

0% (1992)

20% (2000)

0% (1994)

100% (2012)

0% (1992)

90% (1982)