When analyzing more than one month of CPS data, how do I determine the total population count? I undersatnd how to apply weights to find the population count for one month of data, but I’m having difficulty with the concept of merged data. For example, I understand that I could look at the number of employed workers in January 2014 by applying earnwt to empstat. When I look at full 2014 data and do the same thing, I see that the count is roughly 12 times as large. To arrive at an average, can I simply divide this yearly count by 12? I suspect this is too simplistic so would appreciate your help!

Thanks very much.