This gives some idea (at least for ones that went to the USA/NorthAmerican market):
So about 522 Sports for North America out of about 953 total North American Roadsters for 2010 & 2011.
(I am not counting any of the 2008 1.5s since there was no Sport variant available back then.)
So I think a little more than half of them were ordered as "Sport" models. I am not sure if the ratio in Europe was the same. Proper European production was always 2.x models with Sport variant always available in 2010/2011/2012.