Bitcoin’s rally has picked up speed throughout this year, with the world’s largest cryptocurrency breaching new levels at an ever greater pace as it increases sixfold. Bitcoin first crested at $1,000 in 2013 and didn’t even breach $2,000 until this May, but the currency since cracked the $3,000, $4,000 and now $5,000 levels in quick succession, according to data compiled by Bloomberg. The only slowdown came amid China’s crackdown on cryptocurrencies in September, which seems a distant memory as bitcoin rockets toward $6,000.