The following return series comes from Global Financial Data.

Year	Large Stocks	LT Gov Bonds	US T-bills (Rf asset)	CPI (inflation)
2016	12.95%	2.35%	0.20%	1.90%
2017	18.63%	5.75%	0.60%	1.80%
2018	-5.28%	-1.25%	0.80%	2.10%
2019	25.45%	3.35%	1.20%	1.10%
2020	19.12%	9.30%	1.50%	2.10%

Calculate the average risk premium earned on US T-bills. (Enter percentages as decimals and round to 4 decimals)