Statistics about records in Entrez Gene are available :
A current snapshot by taxonomic nodeTo generate a report by a taxonomic level above a species, enter the name of the node as recoginized by NCBI's Taxonomy resource, the id for that node, or select one of the choices in the pull-down menu. The output is either html (the default) or text.
The values in the html table are linked as follows:
| Binomial | historical Gene data for the species |
| TaxID | NCBI's Taxonomy browser, including the summary of counts of records in other NCBI databases for the species. |
| Current count | Retrieve current records from Gene for the species |
The monthly counts of Entrez Gene records for the tax_id, sorted inversely by date.