Disease Rate 2014 0 0.35 1.86 1.35 2015 0 0.31 1.41 0.91 2016 0 0.31 1.47 0.98 0.07 2017 0 0.29 1.26 0.90 0.05 A new data management system enabled a more comprehensive collection of occupational disease data beginning in 2016.