State Case and Procedural (Negative) Error Rate 2007 Documents 09 07 negatives 08 07 negatives 07 07 negatives 06 07 negatives 05 07 negatives 04 07 negatives 03 07 negatives 02 07 negatives 01 07 negatives 12 06 Negatives 11 06 Negatives 10 06 Negatives