The Northwoods Outdoor Company is a catalog sales operation that specializes in outdoor recreational clothing. Demand for its items is very seasonal, peaking during the Christmas season and during the spring. It has accumulated the following data for orders per season $($quarter$)$ during the past $5$ years:

$\backslash$table$[[,$Orders $(1,000$s$)/$Year$],[$Auarter$,1,2,3,4,5],[$January$-$March,$18\mathrm{.}6,18\mathrm{.}1,22\mathrm{.}4,23\mathrm{.}2,24\mathrm{.}5],[$April$-$June,$23\mathrm{.}5,24\mathrm{.}7,28\mathrm{.}8,27\mathrm{.}6,31\mathrm{.}0],[$July$-$September,$20\mathrm{.}4,19\mathrm{.}5,21\mathrm{.}0,24\mathrm{.}4,23\mathrm{.}7],[$October$-$December,$41\mathrm{.}9,46\mathrm{.}3,45\mathrm{.}5,47\mathrm{.}1,52\mathrm{.}8]]$