Deposit Interest Rate in Sao Tome and Principe decreased to 2.20 percent in the third quarter of 2023 from 2.28 percent in the second quarter of 2023. Deposit Interest Rate in Sao Tome and Principe averaged 11.29 percent from 1989 until 2023, reaching an all time high of 38.29 percent in the fourth quarter of 1998 and a record low of 2.20 percent in the third quarter of 2023. source: IMF