56% (1978)

56% (2001)

0% (1993)

0% (1996)

0% (1991)

20% (1992)

70% (1967)

0% (2009)

0% (1982)

20% (1987)

60% (2020)

60% (2018)

60% (1973)

70% (2009)

40% (2006)

20% (2017)

0% (1981)

0% (2017)

50% (1997)

0% (1960)