Table 7. Top 10 States Trading with Mexico by Surface Modes of Transportation ,, Ranked by July 2006 Surface Trade Value,, (millions of dollars),, Rank,State,Jul-06 1,Texas,"6,450" 2,California,"3,838" 3,Michigan,"1,673" 4,Illinois,738 5,Arizona,682 6,New York,475 7,Ohio,466 8,Tennessee,451 9,North Carolina,390 10,Pennsylvania,380 "Source: BTS Transborder Freight Data, http://www.bts.gov/transborder/",,