According to NHK news, the Association of Japanese Animation (AJA) surveyed the present situation of the illegally shared anime. From February to March 2009, 38 thousand illegal files were uploaded to Japanese and non-Japanese websites and they were watched 69 million times during the period. AJA staff said they will keep on making efforts to spread high-quality pay streaming services in opposition to the prevailed illegal websites.

Source: NHK

Ref.
Crunchyroll's pay streaming service ($7 per month) has 4.5 million members and they provide 200 titles, 5,000 episodes. The president of Crunchyroll Japan Branch Vincent Shortino said the number of illegal downloads of NARUTO episodes decreased by 74% after their official streaming started.

Source: Ascii