63% (2015)

63% (2017)

61% (2002)

56% (1997)

33% (2001)

50% (1999)

40% (2011)

47% (1998)

35% (2000)

0% (2013)

55% (2007)

75% (2010)

0% (2007)

57% (2010)

0% (2013)

0% (2011)