Based on the data provided in Table $2\mathrm{.}5,$ what is the flow time of callers from $8$:$00$ am to $8$:$37$ am$?$

Note: Round your answer to $1$ decimal place.

Caller Time in Time out

$18$:$008$:$09$

$28$:$048$:$12$

$38$:$048$:$17$

$48$:$078$:$13$

$58$:$108$:$15$

$68$:$118$:$29$

$78$:$128$:$24$

$88$:$208$:$37$