68% (2015)

0% (1970)

55% (2005)

62% (2018)

68% (2010)

63% (2008)

66% (2002)

59% (1999)

54% (2006)

62% (2004)

50% (2011)

57% (2006)

42% (2005)

51% (2008)

0% (2010)

53% (2010)

66% (2012)

0% (2012)