That information doesn't seem to be around the 'net.. and when people ask, they always seem to get told to buy some book.
It's odd.. because the '41 thru '46 trucks have lots of good production information.. not sure why the '47 thru '53 trucks would be any different.
A person claimed to have a 'secret source' and posted these numbers..
1949
about 200,000 under 5,000 GVW
about 100,000 5,000 - 10,000 GVW
1950
just over 250,000 under 5,000 GVW
just over 100,000 5,000-10,000 GVW
just over 25,000 10,00-14,000 GVW
justunder 100,000 14,000-16,000 GVW
1951
just over 200,000 under 5,000 GVW
just over 75,000 5,000-10,000 GVW
just over 25,000 10,000-14,000 GVW
just over 100,000 14,000 GVW & up
1952 unknown
1953
just over 200,000 under 5,000 GVW
just over 70,000 5,000- 10,000 GVW
1954
just over 170,000 under 5,000 GVW
just under 65,000 5,000-10,000 GVW