Here are my numbers....

9 inhales per minutes at rest

Taking deep breath and holding it as long as possible (no air in or out) - 42 seconds.

Taking deep breath and then trying to pull in more air -- about 10 seconds (pulled in some air and couldn't hold it or control the exhale! No idea what if anything that means!!)

What I notice is when I'm actively doing something (esp. when tired), my breathing is much shallower and more rapid. And, of course this is even more pronounced in hot weather. (But I passed all my lung function tests.)

Sue