From the data what do you think of the investment performance of this Class A stock?

Please include a segment for 76 15, 10-'15, and '15

Class A Shares versus S\&P 500 Index over 39 Years \begin{tabular}{|l|l|l|} \hline & BRK.A & S\&P 500 \\ \hline 5 Years Annualized & 12.8% & 13.8% \\ \hline 15 Years Annualized & 9.5% & 2.6% \\ \hline 39 Years Annualized & 22.8% & 8.0% \\ \hline \end{tabular}