Franklin's investment fund had a balance of $280,000 on January 1, 1995 and a balance of $447,000 two years later. The amount of interest earned during the two years was $33,000, and the annual yield rate on the fund was 5.5%. Estimate the (dollar-weighted) average date of contributions to the account. (Round your answer to the nearest integer.)

The average date of payment is______ days after January 1, 1995.