Anime Sales in Japan - 2012

[catclan]

I was reading an article about the new Shimajirou movie and found some interesting information about Movie revenues. According to the article, the Anpanman movie series have a gross box-office revenue of 500 millions yens. But the most interesting bit of information was that the 2005 Arashi no yoru ni movie had a box-office revenue of 1,900,000,000 yens, making it a big success.
More information can be found on: http://animeanime.jp/article/2012/11/09/12021.html

I don't follow that much box-office revenue, but 1.9 billion is a lot isn't it? Or I'm just overreacting?