Production numbers for 1990 Quadrifoglio Spider?

[90Quad]

Anyone have a book with the production numbers for a 1990 Quadrifoglio Spider? Specifically North America if available. And if you could give me the source as well, that would be great.

Thanks

[papajam]

Alfa parts microfiche #60495241 for model year 1990 Spiders lists the starting chassis number as ZAR115000*06000000*. It does not, unfortunately, differentiate between Spider, Veloce or Quad. Nor does it have production numbers.