20% (2020)

23% (2003)

20% (1997)

20% (2010)

60% (1996)

15% (2012)

30% (2005)

20% (2017)

0% (2008)

60% (2014)

30% (2019)

35% (2016)

40% (1991)

60% (2016)

30% (2009)

70% (2018)

20% (2003)

20% (1995)

35% (1981)

20% (1984)