A person enters into a swap. They wants to swap the floating interest rates for a fixed interest rate during all four years. The notional amount in year one is $1000. The notional amount in year two is $1500. The notional amount in year 3 is $2000 and the notional amount in year 4 is $2500. The spot rates are as follows:

Time to Maturity	spot rate
1	3.0%
2	4.0%
3	4.3%
4	4.9%

Determine the 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.