Solve each problem.
The number of mutual funds operating in the United States available to investors each year during the period 2004 through 2008 is given in the table. To the nearest whole number, what was the average number of funds available per year
during the given period?
$\begin{array}{|c|c|}\hline & {\text { Number of }} \\ \hline \text { Year } & {\text { Funds Available }} \\ {2004} & {8041} \\ {2005} & {7975} \\ {2006} & {8117} \\ {2007} & {8024} \\ {2008} & {8022} \\ \hline\end{array}$