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Investigations, federal-fiscal-year 2023

(Oct. 1, 2022, through Sept. 30, 2023; updated Jan. 27, 2023)

Investigations, federal-fiscal-year 2022

(Oct. 1, 2021, through Sept. 30, 2022; updated Jan. 12, 2023)

Investigations, federal-fiscal-year 2021

(Oct. 1, 2020, through Sept. 30, 2021; fatalities updated Jan. 12, 2023; serious-injuries updated Oct. 11, 2022)

Investigations, federal-fiscal-year 2020

(Oct. 1, 2019, through Sept. 30, 2020; fatalities updated Oct. 11, 2022; serious-injuries updated April 5, 2022)

Investigations, federal-fiscal-year 2019

(Oct. 1, 2018, through Sept. 30, 2019; fatalities updated Oct. 11, 2022; serious-injuries updated July 8, 2022)

Five-year totals