I think it's 9 or 10, I can't remember. When the coil was new all the winds were touching each other properly and it was at 1.3ohms. Because it's had quite a few wicks in and out some of the winds have started to separate and the resistance had probably risen a bit. It's still working fine so I'll probably leave it for a while longer yet.
You need much less cotton than you think, it really swells up once it's wet.