The year ended on a high note, with the largest employment gains reported in the last month of 2015. Private-sector employment grew by 257,000 jobs from November to December on a seasonally adjusted basis, according to an employment report released today by payroll-processing company ADP and its partner Moody's Analytics. This figure is a significant jump from the downwardly revised gains of 211,000 jobs in November and 173,000 jobs in October.