In general, there are more Premiums than LEs (except for special premiums like Luci, SW Comic Prem, etc).
A *rough* guestimate for production volumes is by using the Pinside collection information - go to a game's information page and look to see how many are owned by fellow pinsiders, then multiply that by 2 or 3x for modern games. Or slightly more accurately, divide the number of LEs produced by the number reported and then multiply that ratio by the number of premiums reported). It's not an exact science (and only works for games that have separate entries for premium and LE), but it's probably the most accurate method we have.
Jurassic Park:
245 LEs reported (500 were produced)
854 Premiums reported (~1742ish produced)
EHOH:
179 LEs reported (400 were produced)
387 Premiums reported (~864ish produced?)