I've been looking for production counts by year. Have a '73, Halo top, factory air, 250, and just restored (kept it original). Help! Phil
Www.martiauto.com They will tell you exact numbers, but it will cost you. I can look on my reports and see what it says about halo tops, but it might just be for Grabbers.
If you are just looking for how many Mavericks/Comets and body-styles (including Grabbers), I have most of these listed within each year of the VIN List: http://www.mmb.maverick.to/resources/categories/maverick-comet-vin-list.12/ 1973 Models are here: http://www.mmb.maverick.to/resources/1973-models.208/ These lists do not show any production numbers based on options, but they might be able to give you a little bit of info. A Marti Report would give you the most specific info pertaining to your car. They are licensed by Ford, and are only $40 for the Deluxe Report.
Here's a example of the Deluxe report for a '70, those have much more info than std report... http://smegnl.medina.oh.us/70MartiReport.pdf