No Market Share movement for Wordpress SSL yet sorry.
Get a list of 651,173 websites using Wordpress SSL which includes location information, hosting data, contact details, 8,203 currently live websites
and an additional 233 domains that redirect to sites in this list. 642,970 sites that used this technology previously and 6,072 websites in the United States currently using Wordpress SSL.
Distribution of locations of all Wordpress SSL customers we've ever tracked.