KE = 0.5 * m * v * v
The politics around this are tricky in part because of comments like yours. https://nypost.com/2019/08/31/nyc-bicyclists-are-killing-ped...
Anyway the article is quoting the same statistics anyone gets from cover, government sources like this: https://www1.nyc.gov/html/dot/downloads/pdf/bicycle-crash-da...
Pedestrian killed in 2017 by bicylists/pedestrian accidents 1, bicylists only fatalites 1.
Pedestrian injured in 2017 by bicylists/pedestrian accidents 315, bicylists injured in 2017 by bicylists/pedestrian accidents 88.