4 ms·Because new jobs have been created, which didn't exist.by rahuldottech 7y agoBecause new jobs have been created, which didn't exist.npo9 7y agoMost of the jobs listed are centuries old not decades. Most of the jobs listed were before people started tracking things like unemployment.TeMPOraL 7y agoMany (most?) of the jobs listed still exist, they were just renamed, and/or look a bit different than they looked in the past.