What was the change in Customer deposits between 2019 and 2020?
{"Accrued employee related expenses": {"January 31, 2020": 845, "February 1, 2019": 780}, "Accrued partner liabilities": {"January 31, 2020": 181, "February 1, 2019": 207}, "Customer deposits": {"January 31, 2020": 247, "February 1, 2019": 239}, "Other(1)": {"January 31, 2020": 878, "February 1, 2019": 438}, "Total": {"January 31, 2020": 2151, "February 1, 2019": 1664}}
customer_deposits_2020 = df["Customer deposits"]["January 31, 2020"]
customer_deposits_2019 = df["Customer deposits"]["February 1, 2019"]
answer = customer_deposits_2020 - customer_deposits_2019