PubMed total records by publication year
Yearly citation totals from each year of the MEDLINE/PubMed Baseline referencing citations back to year 1781.  These totals may increase over time for a particular year as new citations are added.  For example, 25 citations were listed for the year 1800 in the 2018 MEDLINE/PubMed Baseline, while the 2019 Baseline …