Leading Economic Index Guinea Bissau increased 0.60 percent in February of 2018 over the same month in the previous year. Leading Economic Index in Guinea Bissau averaged 0.96 Percent from 2012 until 2018, reaching an all time high of 3.50 Percent in December of 2013 and a record low of -15.90 Percent in January of 2014. source: Central Bank of West African States (BCEAO)