"Lumber futures on a continuous contract basis have soared 95% since November 15 when prices started..." (Mozée, 2021)
References:
Mozée, Carla. (2021, December 20). Lumber prices have spiked 95% in 5 weeks as supply issues arise following Canadian floods while demand stays strong. Retrieved from Market Insider: https://markets.businessinsider.com/news/commodities/lumber-prices-rally-supply-shortages-commodities-markets-demand-housing-2021-12