Unemployment, as measured by Gallup without seasonal adjustment, increased to 10.1% in September — up sharply from 9.3% in August and 8.9% in July. Much of this increase came during the second half of the month — the unemployment rate was 9.4% in mid-September — and therefore is unlikely to be picked up in the government’s unemployment report on Friday. Certain groups continue to fare worse than the national average. For example, 15.8% of Americans aged 18 to 29 and 13.9% of those with no college education were unemployed in September. The increase in the unemployment rate component of Gallup’s underemployment measure is partially offset by fewer part-time workers, 8.7%, now wanting full-time work, down from 9.3% in August and 9.5% at the end of July.