Cryptocurrency usage is growing in Nigeria as Africa's largest economy grapples with a weakening currency and soaring inflation, New York-based blockchain research firm Chainalysis said in a report on Tuesday. Nigeria's volume of crypto transactions grew 9% year-over-year to $56.7 billion between July 2022 and June 2023. In Uganda, crypto use is smaller but growing fast, rising 245% to $1.6 billion in the same period, while its use in Kenya fell more than a half to $8.4 billion, the report said.