59% (2007)

58% (2006)

25% (2009)

49% (2006)

58% (2018)

43% (2005)

58% (2001)

39% (1983)

31% (2009)

31% (1998)

38% (2000)

60% (2015)

38% (2001)

24% (2004)

68% (2005)

37% (1998)

33% (2003)

32% (2004)

56% (2018)

67% (2007)