Are The Claims Against OB/GYNs Going Up?

There have been reports in the paper lately about women having trouble finding prenatal care since a lot of OB/GYNs are quitting the specialty due to the high costs of medical malpractice insurance in the field. Are there so many more claims against OB/GYNs that the rates have to rise and put people out of business? Where can I find out more medical malpractice information? I really want to find out what is being done to try to solve this issue since care from an OB/GYN is so important to women. I hope the insurers and doctors can come up with some type of solution.