I found this table on a web page about boxers. It has all the weights for puppies (in Kilos not in Pounds, but there's a lot of web pages where you can translate from Kg to Pounds online). I hope It's useful for you. Anyway, in my opinion, this puppies are very big, comparing to what I've heared around, so it's just as a reference.
AGE (in days) WEIGHT female-male
born day 400-500g
10 900g-1,2 Kg.
20 1,7-2,1 Kg.
30 2,8-3,1 Kg.
40 3.9-4,2 Kg.
50 4,8-5,3 Kg.
60 5,9-6,5 Kg.
70 6,8-7,4 Kg.
80 8-8,6 Kg.
90 9,1-9,8 Kg.
100 10-10,7 Kg.
110 11,3-12 Kg.
120 12.2-12.7 Kg.
130 13-13,8 Kg.
140 14-15kg.
150 14,8-16kg.
160 16,3-17,2 Kg.
170 17,5-18,5 Kg.
180 19,8-22 Kg.