Complex sentence: As of December 2008, Takeuchi has released 11 studio albums, 35 singles, several compilations, and a live album which was recorded in 2000, and those sales have been estimated at more than 16 million units as of 2009.
Split into simpler sentences: As of December 2008, Takeuchi has released 11 studio albums, 35 singles, several compilations, and a live album which was recorded in 2000. Her total sales have been estimated at more than 16 million units as of 2009.