The study examines people age 25-54 (described as "prime working years"). The number of unmarried men in this age range may well be higher than the number of u

The study examines people age 25-54 (described as "prime working years"). The number of unmarried men in this age range may well be higher than the number of unmarried women if a sufficient fraction of women age 25-54 are married to men under 25 or (which is more likely) over 54.