On an average, how many types of commercial vehicle trucks are available in the world?

Most of the commercial vehicle trucks that are seen in the world are as follows
Mini Truck (Tempo MCV)
ICV Truck Intermediate commercial vehicle
LPT Trucks (Long Platform Trucks)
HMV Truck (Heavy Motor Vehicle)
Open Platform Truck
Garbage Truck
Hazardous waste truck
Container Truck
Self-loading Trucks
Trailer Truck
Semi-trailer truck
Flatbed Truck
Tanker Truck
Dumper Trucks
Concrete mixers Bulker Truck
Refrigerated Truck
Car Carrier Truck
Heavy Haulage Monster Truck