The January-March economic growth figure was revised upward to an annual pace of 3.3 percent, mainly because corporate investment was stronger than initially estimated, the government said Monday.

The preliminary figure was 2.4 percent.

The expansion over the previous three-month period, measured in terms of gross domestic product, represents the ninth consecutive quarterly growth. GDP showed a 0.8 percent increase from the October-December period, compared with the initially reported 0.6 percent expansion, the Cabinet Office said.