Passenger volume at Los Angeles International Airport (LAX) jumped 3.6 percent to more than 30.9 million passengers in the first half of this year, compared with the same time last year, airport statistics show.

Between January and June, LAX saw an increase of 3.8 percent in domestic traffic from last year to about 22.6 million passengers, while the international passenger level rose three percent to approximately 8.3 million from 8.1 million last year, airport officials said.

Total air cargo tonnage at the airport in the first half of the year also increased 5.4 percent to 964,360 tons from 915,147 in 2011.

In addition, freight rose 4.5 percent to 914,522 tons compared to 875,317 last year, while air mail service increased a more dramatic 25 percent to 49,838 tons from 39,830 tons during the same period last year.

During the month of June the total passenger volume was 1.9 percent higher than last year at about 5.7 million passengers, with domestic jumping 1 percent to 4.2 million passengers and international traffic growing 4.6 percent to 1.6 million over the month.