A person borrowed $1000 for 4-years at a variable interest rate. They will make an interest payment to the lender at the end of each year and also repays $1000 at the end of 4 years. The spot rates are as follows:

Time to Maturity	spot rate
1	3.4%
2	3.7%
3	4.3%
4	4.6%

The person decided to enter into an interest rate swap to fix the interest rate for 4 years. Determine the level swap rate R. Enter your answer as a decimal to four decimal places. e.g. if the swap rate is 5.62%, you would enter 0.0562.