57% (2018)

56% (2011)

58% (1999)

49% (1998)

41% (2009)

50% (2001)

60% (1997)

42% (2007)

40% (1989)

50% (1995)

60% (2000)

47% (2015)

37% (2011)

25% (2014)

32% (2017)

34% (1991)

46% (1992)

55% (2016)

43% (1987)

0% (2018)