Janice V. bought a 5% $1000 20-year bond for $875. She received a semiannual dividend for 8 years, then sold it immediately after the sixteenth dividend for $950. What rate of return did she make per semiannual period, and per year (nominal)? The rate of return that she made per semiannual period is %. The rate of return that she made per year is [ ] %