Suicides among military veterans, though up slightly in recent years, account for a shrinking percentage of the nation’s total number of suicides — a result of steadily rising numbers of suicides in the general population, according to a report released on Friday by the Department of Veterans Affairs.

The report, based on the most extensive data the department has ever collected on suicide, found that the number of suicides among veterans reached 22 a day in 2010, the most recent year available.

That was up by 22 percent from 2007, when the daily number was 18. But it is only 10 percent higher than in 1999, according to the report. Department officials described the numbers as “relatively stable” over the decade.

In the same 12-year period, the total number of suicides in the country rose steadily to an estimated 105 a day in 2010, up from 80 in 1999, a 31 percent increase.