66% (2010)

58% (2015)

62% (1992)

50% (2015)

63% (2013)

46% (2008)

47% (2008)

51% (2016)

50% (2010)

34% (2008)

43% (2001)

55% (1988)

60% (2009)

56% (2001)

46% (2007)

58% (1999)

42% (2002)

56% (2006)

51% (1999)

50% (1990)