Articles published in open access journals have increased in Web of Science from <2% in 2000 to >11% in 2013. The following table and chart show the percentage of articles published in pure open access journals by subject category in 2012. The article counts and subject classifications have been taken from SCImago Journal and Country Rank and the open access information from the Scopus coverage list. Please note this does not include open access articles published in hybrid journals (subscription journals which provide an option for an author or funder to publish an article as open access) or articles that been archived in an open repository (green open access).
*PLOS One accounts for more than 80% of the open-access articles in the multidisciplinary subject area