Complex sentence: As a biweekly, it sold about 18,000 copies every two weeks, and has a current circulation of about 16,000 a week; it sold an estimated 863,387 copies in 2011.
Split into simpler sentences: As a biweekly, it sold about 18,000 copies every two weeks. The paper now has a current weekly circulation of about 16,000 and sold an estimated 863,387 copies in 2011.