Consider the following table for a seven-year period:

Year	Returns
	U.S. T-bills	Inflation
1926	3.27%	1.49%
1927	3.12	2.08
1928	3.56	.97
1929	4.75	.20
1930	2.41	6.03
1931	1.07	9.52
1932	.96	10.30

What was the average real return for Treasury bills for this time period?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.