Some interesting information can be gleaned from this study. The decline in mortality was mostly due to fewer deaths among children, because they apparently are cycling less and using helmets more. Mortality actually went up among males 25-64 years old.
The statistics only include deaths from accidents involving motor vehicles. Thus, they omit deaths from cyclists who were riding on trails, bike paths and road accidents not involving cars or trucks. Most cycling injuries that I have observed involved cyclists who were not hit by cars or trucks, but crashed due to group ride antics, potholes, sticks, dogs and general inattention. I have pretty much quit participating in large group rides due to unsafe conditions. However, riding on multi-use trails is not necessarily safer due to various factors -- walkers and joggers wearing earbuds and not paying attention to their surroundings, people walking dogs on long leashes, unsupervised children, walkers and joggers not understanding the concept of staying on the right side of trails, cyclists riding too fast and not indicating their presence with bells or shouts, etc.