How do I know how many of my corvette have been produced?

[lulu]

I have a 1980 corvette and would like to know how many of it with the same specs have been produced. I looked at a couple of websites that lists the numbers but numbers are separated according to option. Your help in giving an approximate number would be greatly appreciated. Below are the original specs of my car:
- Black exterior
- bright red leather interior
- manual transmission
- L48 engine (not california)
- removable glass tops (t-tops)
- cruise control
- power antenna
- power door locks
- rear window defogger