Consider the following data.

$\backslash$table$[[$Period$,$Rate of Return $(\%)],[1,-5\mathrm{.}0],[2,-9\mathrm{.}0],[3,-4\mathrm{.}0],[4,3\mathrm{.}0],[5,5\mathrm{.}4]]$

What is the mean growth rate over these five periods? $($Round your answer to two decimal places.$)$

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