20% (2020)

20% (2018)

0% (1986)

20% (1982)

30% (2009)

35% (1981)

20% (2021)

0% (2010)

60% (2016)

47% (1963)

23% (2003)

60% (1996)

20% (2003)

30% (2005)

0% (2008)

20% (1995)

20% (1997)

20% (1993)

15% (2012)

40% (2010)