From: Stevan Harnad <[log in to unmask]>
Date: Thu, 9 Feb 2012 01:45:48 -0500

On 2012-02-08, at 9:38 PM, Sally Morris wrote:

> Can Heather (or anyone) provide a figure of (immediate) OA articles as a
> percentage of all articles in each recent year?  That's what we need to look
> at to see whether, as Sami states, it is indeed growing at just 1% p.a.

See:

Poynder, Richard (2011) Open Access by Numbers, Open and Shut, 19 June
2011 http://poynder.blogspot.com/2011/06/open-access-by-numbers.html

Laakso M, Welling P, Bukvova H, Nyman L, Björk B-C, et al. (2011) The
Development of Open Access Journal Publishing from 1993 to 2009. PLoS
ONE 6(6): e20961. doi:10.1371/journal.pone.0020961

New data forthcoming shortly from analyses by Université du Québec &
University of Southampton.

Stevan Harnad