What is the change in Total reported cases from FY 2016 to FY 2017?
{"Total reported cases": {"FY 2016": 116, "FY 2017": 113, "FY 2018": 150, "FY 2019": 205}, "Ethics-related cases": {"FY 2016": 16, "FY 2017": 20, "FY 2018": 14, "FY 2019": 26}, "Cases investigated and verified as ethics violations": {"FY 2016": 2, "FY 2017": 4, "FY 2018": 1, "FY 2019": 2}, "Sexual Harassment Investigation Committees Formed": {"FY 2016": 5, "FY 2017": 7, "FY 2018": 3, "FY 2019": 4}, "Cases investigated and verified as violations": {"FY 2016": 5, "FY 2017": 3, "FY 2018": 3, "FY 2019": 4}}
total_reported_cases_2017 = df["Total reported cases"]["FY 2017"]
total_reported_cases_2016 = df["Total reported cases"]["FY 2016"]
answer = total_reported_cases_2017 - total_reported_cases_2016