If by "you", you mean NetJets, the answer is zero.

The biggest thing NetJets has on order that I know of is the Global which wouldn't even qualify as a light twin in the "big jet" category.

As I recall, all of NetJets orders are adjustable. A certain number on order with the rest on option. Word is that shares of the bigger, expensive jets are selling well.

Management continually posts numbers indicating that the aircraft on order are "replacement". It is very cautious saying anything about "growth". I'm guessing the eight year FO's will be FO's for years to come with no opportunity for PIC time to help them go elsewhere....but a lot of guys like the fractional flying even from the right seat.