I have been trying to replicate by using IPUMS-CPS. However, the number I calcurated by using HWTSUPP weight is not equal to the official number. Specifically, I simply summed up HWTSUPP weight of each hosehold, but the total number (123,053 thus. units) is a little different from the official number (123,229 thus. units).
How should I do in order to replicate the number of households by using IPUMS-CPS?