Loop Through Textboxes

I have a user form that has a section of 32 text boxes that all information randomly placed inside some of them. Most of the them will be empty.

Is there an easy way to have have a macro loop through these text boxes and find their values (if they have any), and then place those values on the next available row in a worksheet?

Here is a picture of what they look like

What I'm trying to do is get the next rows in my sheet to say:
5
1
22
32
11
23
1
15
etc...