60% (2015)

53% (2013)

47% (2002)

53% (2010)

75% (2008)

67% (2015)

58% (2011)

55% (2002)

53% (2009)

44% (1993)

45% (2002)

55% (2011)

46% (2008)

41% (2008)

40% (1994)