How can I describe the graphs below, which indicate that since California enacted stronger gun rules, the death toll has decreased in comparison to before? And comparing to other states.

California Gun Violence: Killed vs. Injured # Killed # Injured 100 120 80 100 80 60 60 40 40 20 20 2014 0 2022 Year\f2022 2014 100 Deaths from gun violence in other states compared to California 90 80 70 60 50 40 30 20 10 California Michigan States