Employment at the nation's hospitals rose 0.30% in May to a seasonally adjusted 4,631,700 people, the Bureau of Labor Statistics reported today. That's 14,000 more than in April and 132,100 more than a year ago. Without the seasonal adjustment, which removes the effect of fluctuations due to seasonal events, hospitals employed 4,619,700 people in May, 17,500 more than in April and 131,100 more than a year ago. The nation's overall unemployment rate rose by one-half of a percentage point in May to 5.5%.