Construct a table that computes the average three-year return for each type, market cap, and rating.

Type	Market Cap	Rating	Return	Risk
Growth	Large	Three	9.5	Average
Growth	Large	One	11	Average
Growth	Large	Two	17.8	High
Growth	Large	Five	15.5	High
Growth	Large	Four	1.8	Low
Growth	Large	Three	12	High
Growth	Large	Two	6.8	Average
Growth	Large	Three	14.3	High
Growth	Large	Four	5.5	Average
Growth	Mid-Cap	Four	13.3	High
Growth	Mid-Cap	One	-3.3	Low
Growth	Mid-Cap	One	18	High
Growth	Mid-Cap	Three	7	Average
Growth	Mid-Cap	Three	11.3	Average
Growth	Mid-Cap	Three	5.8	Average
Growth	Mid-Cap	Two	11.3	Average
Growth	Mid-Cap	Five	3.3	Low
Growth	Mid-Cap	Four	1.3	Low
Growth	Small	Two	3	Low
Growth	Small	Two	11	Average
Growth	Small	Two	11	Average
Growth	Small	Three	-4.8	Low
Growth	Small	One	1.3	Low
Growth	Small	Two	0.3	Low
Growth	Small	Two	8.5	Average
Value	Large	Five	-3.5	Low
Value	Large	Five	-2.5	Low
Value	Large	Four	19.8	High
Value	Large	Four	-2	Low
Value	Large	Three	10.5	Average
Value	Large	Three	16	High
Value	Large	Four	14.8	High
Value	Large	Four	15.3	High
Value	Large	Four	18.3	High
Value	Large	Four	-1.8	Low
Value	Large	Four	9.3	Average
Value	Large	Four	9	Average
Value	Mid-Cap	One	18.5	High
Value	Mid-Cap	Three	-0.3	Low
Value	Mid-Cap	Two	7.3	Average
Value	Mid-Cap	Two	6.5	Average
Value	Mid-Cap	One	15	High
Value	Mid-Cap	Two	-4.5	Low
Value	Mid-Cap	Three	13	High
Value	Small	Five	-2.5	Low
Value	Small	Two	1	Low
Value	Small	Five	9.8	Average
Value	Small	One	16.3	High
Value	Small	Four	-2	Low
Value	Small	Two	8.3	Average