63% (2015)

71% (2016)

63% (2017)

56% (2015)

62% (2002)

56% (2001)

41% (2002)

57% (1997)

59% (1999)

39% (2015)

52% (2001)

48% (2000)

57% (2010)

40% (2011)

47% (1998)

55% (2007)

0% (1999)

40% (2011)

40% (2013)

50% (1999)