How often do people hyperventilate?

Hyperventilation: Some individuals are chronic hyperventilators. It's hard to know what percentage of the population this involves. They frequently go undiagnosed. There are others who hyperventilate only when under stress. It's hard to know percentages. But some of the conditions that can be triggered or exacerbated by hyperventilation include anxiety and panic attacks, migraine, raynaud's ; some GI symptoms.