Below is a summary of the last $12$ months of costs for a service company, showing the total work time and salary costs for each month:

Month Total work time $($hours$)$ Total salary costs $($$$)$

Jan $16017,200$

Feb $31026,454$

Mar $33526,500$

Apr $27525,147$

May $16517,000$

Jun $18517,800$

Jul $30023,650$

Aug $11015,570$

Sep $36027,945$

Oct $13015,600$

Nov $29024,569$

Dec $24518,900$

The company has a normal capacity of $200$ hours per month. However, when the company has a busy month $($i$.$e$.$ when demand exceeds normal capacity$),$ they hire some additional temporary staff to complete the work, who are paid a higher hourly rate.

Using high$-$low analysis, calculate the variable labour cost per hour for regular workers $($i$.$e$.$ the first $200$ hours of work$).$ Show your answer to $4$ decimal places.