Japanese population declines by record 180,000 to 127.51 mil.

Japan’s estimated population decreased for the second year in a row, declining by a record 183,000, or 0.14 percent, from a year earlier to 127,510,000 as of Oct. 1, 2009, government data showed Friday.

By prefecture, Tokyo, Kanagawa, Saitama, Chiba, Aichi, Shiga and Okinawa saw population increases as they did in 2008.

Okinawa saw the largest year-on-year increase with a 0.45 percent rise to 1,382,000.

Tokyo remained the most populous region with 12,868,000 people as of Oct. 1, accounting for 10.1 percent of Japan’s total population. Tokyo was followed by Kanagawa with 8,943,000 and Osaka with 8,801,000.