On Tuesday, the Bureau of Labor Statistics released data showing that about one-third of all workers have access to health care benefits for same-sex couples. Access to the benefits varied based on the type of job, company and geographical location. The survey found that about 33% of state and local government employees had domestic partner health benefits, compared with 29% of employees in private companies. The data come from answers to two questions recently added to the National Compensation Survey in response to growing interest in domestic partner health benefits for same-sex couples, according to Philip Doyle, assistant commissioner of BLS.