When using this data, please acknowledge financial support
from NIA grant P30-AG012810 through the NBER.

births_data.zip unzips to the births_data directory.

If you just want the "cleaned" data, you can just focus on the
"5_births_data-cleaned_stata" subfolder, which has cleaned Stata files
("clean_natalityYYYY.dta") that should be ready for you to use.

natality_documentation_all.xls
is the main doc prepared by Heidi Williams.  

4_births_data-uncleaned_stata/clean_natality_1940_1968.do
is the file used to clean the 
4_births_data-uncleaned_stata/natalityYYYY.dta files 

3_births_data-formatted_excel/natalityYYYY.xls
are re-formatted versions of the original excel files put into
a standardized format across years and a few other fixes.

2_births_data-original_excel/natalityYYYY.xls 
are the original files as received from the data entry firm.

1_births_data-original_pdf/YYYY.pdf 
has the original PDFs sent to the data entry firm.


When using this data, please acknowledge financial support
from NIA grant P30-AG012810 through the NBER.

natality_documentation_all.[xls|csv]  has fields 
year,file name,original file location,table, page number start, page number end,
by county of residence?, by attendant?, by race?, by urbanicity?, other notes

jroth@nber.org  Jean Roth , 2010-01-21