Each of the small boxes in the figure below is a square and the area of the figure is 52 square units. How many units are there in the outer perimeter of the figure?

There is a drawing.

first row has 1 small box

2nd row has 3 small boxes

3rd row has 4 small boxes

4th row has 3 boxes

5th row has 1 box

sorry, don't know how to draw the box on this site.

I would appreciate anyone's help.

Thank you.