There's good news, bad news, and more good news about high cholesterol levels. The first good news is that the percentage of Americans with high cholesterol is falling. The bad news is that over 73 million Americans still have high "bad" cholesterol levels.What's the other piece of good news? Several of the top companies that make the drugs that have helped reduce cholesterol levels offer really attractive dividends.Amgen (NASDAQ: AMGN), AstraZeneca (NYSE: AZN), Novartis (NYSE: NVS), Pfizer (NYSE: PFE), and Sanofi (NYSE: SNY) all compete in the cholesterol-drug market.