$2019$

$2018$

$2017$

$2016$

Sales $($thousands$)$

$$14,775$

$$13,425$

$$11,775$

$$10,800$

CGS $($thousands$)$

$9,146$

$8,189$

$7,159$

$6,534$

Gross margin

$$5,629$

$$5,236$

$$4,616$

$$4,266$

Percent

$38\mathrm{.}1$

$39\mathrm{.}0$

$39\mathrm{.}2$

$39\mathrm{.}5$