What is the total Unsecured bank loans?
{"": {"2018": "NT$(In Thousands)", "2019": "NT$(In Thousands)"}, "Unsecured bank loans": {"2018": 7780552, "2019": 8080200}, "Unsecured other loans": {"2018": 5323256, "2019": 3935006}, "Total": {"2018": 13103808, "2019": 12015206}}
unsecured_bank_loans_2018 = df["Unsecured bank loans"]["2018"]
unsecured_bank_loans_2019 = df["Unsecured bank loans"]["2019"]
answer = unsecured_bank_loans_2018 + unsecured_bank_loans_2019