In the Netherlands there are 50 Starks in total with a licence plate (so sold to consumers). That are all EX's. MX's are not streetlegal so not in this data.
Edit: This year 214 KTM EXC's, 57 Beta's, 21 Sherco's, 13 Rieju's.
The other brands had no good info due to lack of findeable tradenames...