OTTAWA—Statistics Canada says the economy added 157,000 jobs in September, bringing employment back to pre-pandemic levels for the first time. The unemployment rate fell to 6.9 percent, down from 7.1 percent in August. Statistics Canada says the unemployment rate would have been 8.9 percent in September, down from 9.1 percent in August, had it included in calculations Canadians who wanted to work but didn’t search for a job. The last time Canada had this large an employment gain was in June 2021, when the economy added 231,000 jobs. The statistics agency says the job gains were widespread, but concentrated in full-time work and evenly split between the public and private sector. Gains were also notable in industries where many workers continue to work remotely. Still, the ranks of long-term unemployed who have been without work for six month or more remained little changed last month and was still double the …