How Often Is One Supposed to Cry?

I realize that I often don't cry much. When I do, it's typically because things have culminated up to a point, where I feel as though I'm about to burst. Either that, or someone may make a comment, that reminds me of past trauma, or to that of loneliness. That's why I'd like to know if it's normal to not often cry. I've seen many people express that they cry much, whether through the means of social media, or simply throughout everyday life. However, I find myself at odds when it comes to crying, or simply expressing any emotion in a physical, or "lively" manner. I just wanted to know if it's often, that one may not express themselves, as often as you may see more "extroverted" people doing so, or those who simply express themselves in a livelier manner. Does anyone else relate to this at all?