The table below contains $2019$ data on the monthly amount in millions of dollars which was spent for advertising apparel and accessories in a leading magazine.

Month Spending

Jan $$6\mathrm{.}7$

Feb $6\mathrm{.}2$

Mar $12\mathrm{.}1$

Apr $14\mathrm{.}4$

May $11\mathrm{.}1$

Jun $7\mathrm{.}4$

Jul $6\mathrm{.}4$

Aug $12\mathrm{.}9$

Sep $21\mathrm{.}1$

Oct $15\mathrm{.}4$

Nov $16\mathrm{.}5$

Dec $11\mathrm{.}6$

a$.$ Use single$-$factor exponential smoothing with to obtain the forecasts for the months of February through December of $2020.$ Assume that the forecast for January of $2020$ is the same as the actual for January of $2019.$