National Trends in Lead Concentrations in 2000 - 2012
Year Mean Number of Trend Sites 10th Percentile 90th Percentile
2000 0.26079999999999 50 0.02 0.925
2001 0.315 50 0.02 1.035
2002 0.2038 50 0.015 0.925
2003 0.20239999999999 50 0.01 0.745
2004 0.2562 50 0.01 0.81
2005 0.18509999999999 50 0.015 0.395
2006 0.1512 50 0.01 0.41
2007 0.17619999999999 50 0.01 0.565
2008 0.22439999999999 50 0.01 0.46
2009 0.11749999999999 50 0.01 0.3025
2010 0.1092 50 0.01 0.35
2011 0.1463 50 0.01 0.41
2012 0.12599999999999 50 0.01 0.35