The length and cost of job-related injury leaves taken by city of Los Angeles employees are growing rapidly, the Los Angeles Times found, primarily because the employees take home more money when they're out with claimed injuries than they do when they show up for work. Payments to injured police and firefighters, who get 100% of their salaries, tax-free, while out on leave, rose 30% from 2009 to 2013, The Times found. Fewer than 5% of the injuries were attributed to acts of violence, smoke inhalation or contact with fire, city data show. About 50% were blamed on “cumulative trauma,” ailments that afflict aging bodies regardless of profession: back strain, knee strain, high blood pressure, carpal tunnel syndrome. Cumulative trauma was also the leading cause of injury among the city's civilian workers, who typically get 90% of their salaries, tax-free, while on leave.