The Northwest Seaport Alliance (NWSA) has seen another busy month as December’s full import volumes recorded their highest for the month over the last five years.

Following a solid November for full international imports and exports, NWSA said it delivered another strong month in December with 14 percent and 6 percent increases, respectively, compared with December 2015.

The alliance handled a total of 139,520 TEUs in import and 122,385 TEUs in export during the month.

Additionally, for the full year of 2016 NWSA reported an increase of more than 2 percent in volumes as it handled 3,615,752 TEUs during the year.

Full imports for the year were up 6 percent to 1,391,590 TEUs and full exports increased 13 percent to 984,274 TEUs.

Domestic volumes saw a slight dip in 2016 as Alaska struggled with a decline in oil- and gas-related project activity due to low commodity prices, according to NWSA. Domestic volumes decreased 1.5 percent for the year.

The alliance, comprised of the ports of Seattle and Tacoma, added that breakbulk cargo is down 23 percent for the year to 181,372 metric tons as the global downturn in agricultural, mining and construction equipment, and a strong U.S. dollar impact volumes.

Log exports declined 25 percent for the year to 176,928 metric tons due to decreased demand in China and competition from New Zealand, while autos units fell 10 percent to 165,687 units for year because of production issues as well as supply chain shifts, according to NWSA.