Japan's top six automakers, including the three biggest manufacturers, logged record production numbers in 2012 as output was hiked to meet robust demand in North America and Southeast Asia, data released Monday said.

As a whole, the eight major automakers produced 9.44 million units at home, up 18.3 percent from 2011, and 15.44 million units abroad, up 18.6 percent.

Among the top three, Toyota Motor Corp. produced 8.74 million vehicles globally, up 26.1 percent from 2011. Its North American output surged 42.7 percent to roughly 1.72 million units.