Registration of new Top Level Domains June 6, 2014
Registration of new Top Level Domains as of June 6, 2014, there are 316 delegated new gTLDs. .XYZ has the highest average daily registration volume with an average of 5,503 registrations per day. However, one might want to keep in mind that registrations and sales are sometimes different things see Domain Incite article on .xyz registrations here.
The average registration of the top half of registries is approximately 198.
The bottom half have a daily average registration volume of 43.