Last month saw a big increase in exports at the Port of Los Angeles, with 12.8 percent more containers leaving the port than in July 2010.

The port is now on track to break its annual record for exports as the weak U.S. dollar helps domestic manufacturers sell their products overseas.

At the neighboring Port of Long Beach, exports inched up six tenths of a percent.

Imports, however, were down at both ports. The number of cargo containers coming into the Long Beach port fell 1.2 percent, while at Los Angeles the decline was 3.2 percent.

Both ports also shipped out fewer empty containers, which don’t count toward either the import or export figures. However, those decreases significantly contributed to an overall decrease in total traffic at the ports.