Table 7. Top 10 States Trading with Mexico by Surface Modes of Transportation ,, Ranked by December 2006 Surface Trade Value,, (millions of dollars),, Rank,State,December 2006 1,Texas,"6,004" 2,California,"3,787" 3,Michigan,"2,426" 4,Arizona,780 5,Illinois,738 6,Tennessee,490 7,Ohio,456 8,Pennsylvania,411 9,New York,359 10,North Carolina,359 "Source: BTS TransBorder Freight Data, http://www.bts.gov/transborder/",,