72% (2019)

63% (2018)

63% (2014)

59% (2019)

69% (2010)

67% (2011)

68% (2012)

58% (2005)

64% (2017)

64% (2005)

56% (2012)

61% (2007)

52% (2001)

0% (2015)

52% (2009)