Global gold-backed exchange-traded funds (ETFs) grew by 3% in 2018, and were driven by strong growth in European funds and increased global inflows during December, the World Gold Council’s monthly gold ETF/exchange-traded product (ETP) report, published on Tuesday, shows. This, the report highlighted, was the first time since 2012 that the value of total gold-backed ETF holdings had ended the year above $100-billion.