National Trends in Lead Concentrations in 2000 - 2010
Year Mean Number of Trend Sites 10th Percentile 90th Percentile
2000 0.28510869565217 92 0.01 0.65
2001 0.375 92 0.01 0.7
2002 0.18249999999999 92 0.01 0.65
2003 0.17989130434782 92 0.01 0.56
2004 0.22065217391304 92 0.01 0.61
2005 0.17315217391304 92 0.01 0.4
2006 0.15619565217391 92 0.01 0.43
2007 0.16967391304347 92 0.01 0.52
2008 0.21423913043478 92 0.01 0.51
2009 0.12565217391304 92 0.01 0.26
2010 0.11108695652173 92 0 0.37