No Market Share movement for Wordpress SSL yet sorry.
Get a list of 681,331 websites using Wordpress SSL which includes location information, hosting data, contact details, 3,042 currently live websites
which includes 308 domains that redirect to sites in the list. 678,597 sites that used this technology previously and 2,205 websites in the United States currently using Wordpress SSL.
Distribution of locations of all Wordpress SSL customers we've ever tracked.