21% is the figure for 2011, but raw log and lumber exports, primarily to China, increased from below 8 billion dollars in 2011 to over 9 billion in 2014.  This resulted in an increase in imports in those years, raising the price for everyone.  Only the bursting of the China construction bubble has lowered the cost of raw logs and finished products since 2015.

Computer controlled mills and mechanization of log harvesting have greatly reduced the number, and pay compensation, of jobs in logging and log milling.  Longshoreman jobs exporting Oregon logs to China don't come close to replacing all those lost jobs.