Leading Economic Index Niger increased 3.50 percent in February of 2018 over the same month in the previous year. Leading Economic Index in Niger averaged 3.84 percent from 2012 until 2018, reaching an all time high of 22.70 percent in January of 2014 and a record low of 1.00 percent in November of 2014. source: Central Bank of West African States (BCEAO)