CDC Births Data This data is drawn from the [USA Centers for Disease Control and Prevention](http://www.cdc.gov/nchs/data_access/Vitalstatsonline.htm), and was compiled via Google's [BigQuery Web UI](https://cloud.google.com/bigquery/bigquery-web-ui) using the following query: SELECT year, month, day, IF (is_male, 'M', 'F') AS gender, SUM(record_weight) as births FROM [publicdata:samples.natality] GROUP BY year, month, day, gender ORDER BY year, month, day, gender It is aggregated so as to comply with their [terms of use](http://www.cdc.gov/nchs/data_access/restrictions.htm). Data was accessed June 9th, 2015. Note that this data has been fairly extensively analyzed by Andrew Gelman and his group; see e.g. [this post](http://andrewgelman.com/2012/06/14/cool-ass-signal-processing-using-gaussian-processes/). Acknowledgements Dataset extraction work and availability on github by [Jake Vanderplas](https://github.com/jakevdp/data-CDCbirths/blob/master/README.md)