Stéphane Rapelli released a study on the socio-demographic characterisation of I-Pros across Europe. I-Pros are defined as self-employed workers, without employees, who are engaged in an activity which does not belong to the farming, craft or retail sectors. They engage in activities of intellectual nature and/or which come under the service sector.
The study shows that the number of I-Pros has grown by 82% between 2000 and 2011, with the biggest concentration of I-Pros in Italy (1,688,894), the UK (1,608,436) and Germany (1,533,050).
For more details see the study itself: EFIP report English