Consider the following table for a seven-year period:

	Returns
Year	U.S. Treasury Bills		Inflation
1	3.35	%	1.13	%
2	3.20		2.27
3	4.10		1.17
4	4.52		.59
5	2.32		6.41
6	1.20		9.33
7	.93		1.28

What was the average real return for Treasury bills for this time period? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Average real return %