How much was the total provision for income taxes across 2018 and 2019?
{"Provision for income taxes": {"2019": 1185.0, "Actual": -87.0, "Constant": -86.0, "2018": 8837.0}, "Effective tax rate": {"2019": 9.7, "Actual": "", "Constant": "", "2018": 71.1}}
provision_for_income_taxes_2019 = df["Provision for income taxes"]["2019"]
provision_for_income_taxes_2018 = df["Provision for income taxes"]["2018"]
answer = provision_for_income_taxes_2019 + provision_for_income_taxes_2018