“Mass shooting” is defined as four or more people shot. A list of the number of those mass shooting events by year is cited below.

2022: 249 as of May 24. In all of 2021: 671; in 2020, 611; 2019, 416; 2018, 336; 2017, 346; 2016, 381; 2015, 335; 2014, 269.

The number of people who were shot and the number who were killed is given by the following website, and it also reports the date and...