You are given the the information below on a mutual fund. What is the arithmetic average? (this is all the info given)

	Year 1	Year 2	Year 3	Year 4
Asset under management at start of year (millions of $)	100.00	116.00	77.60	52.17
Holding-Period Return (% per year)	21.00	-15.00	-7.00	-6.00
Asset under management before flows (millions of $)	121.00	98.60	72.17	49.04
Net inflows (in millions of $)	-5.00	-21.00	-20.00	-52.17
Asset under management at end of year (millions of $)	116.00	77.60	52.17	0.00