Solver - creating portfolios

Hi can anyone help with this

I have the data below showing returns for the market and 5 stocks over the last 6 years I need to use solver to create 5 portfolios from the data below

Year Market risk free A B C D E
return rate
1 7.05 2.5 8.25 6.4 9.25 10.5 11
2 6.2 3 7.9 6.2 6.25 10.25 8.5
3 9.3 3.25 11 7 8.5 12.75 10.5
4 10 3 13 7.5 10 13 14
5 9.5 4 12.5 8 12.5 12.5 12.5
6 11 4.25 13 9.6 12.25 13 14.5

well, are there any guidelines? The 5 best"portfolios" probably would belimited to one invetment each. Is there a minimum # of inventemtns, or a maximum % of one inventment in a portfolio?

Solver could solve for the best portfolio, subject to whatever constraints you wish to put in place. How do you expect to get 5 portfolios from solver?