Table 7. Top 10 States Trading with Mexico by Surface Modes of Transportation ,, Ranked by December 2008 Surface Trade Value,, (millions of dollars),, Rank,State,December 2008 1,Texas,"6,442" 2,California,"3,308" 3,Michigan,"2,034" 4,Arizona,839 5,Illinois,762 6,Ohio,571 7,Tennessee,392 8,North Carolina,355 9,Pennsylvania,329 10,Georgia,324 "Source: BTS TransBorder Freight Data, http://www.bts.gov/transborder/",,