From
http://sgholiday.com/2009/07/japan-p...2010-calendar/
Friday, 1 January 2010 (national holiday)
New Year (Shogatsu)
This is the most important holiday in Japan. While only January 1 is designated as a national holiday, many businesses remain closed through January 3. 2 January and 3 January are officially holidays for bank and government employees only. This national holiday was established in 1948, as a day to celebrate the new year.
Monday, 11 January 2010 (national holiday)
Coming of Age (Seijin no Hi)
Cities and towns throughout the nation hold ceremonies to celebrate, congratulate, and encourage men and women who have reached the age of majority (20) during the year.
So I guess after Jan 4th , then Oricon will start to update their website & sales data again ?