Blue Acre Heavy Industries has had the following earnings over the last few years. $($See table$).$ What is the expected earnings for $2023$ assuming the earnings will grow at the average rate?

$\backslash$table$[[$Year Earnings$],[20186\mathrm{.}25],[20196\mathrm{.}75],[20206\mathrm{.}98],[20217\mathrm{.}15],[20227\mathrm{.}35]]$

$7\mathrm{.}99$

$7\mathrm{.}56$

$7\mathrm{.}66$

$7\mathrm{.}35$