Table 1. Sectoral distribution of sample.

Two-digit ISIC sector	Number of firms	Percentage of sample
Health, cultural and social work	117	27.79
Trade, repairs, and rentals	61	14.49
Other business activities	46	10.93
Hotels and restaurants	40	9.50
Transport services	40	9.50
Computer and related activities	35	8.31
Insurance and pension funding	26	6.18
Financial intermediation	20	4.75
Real estate activities	16	3.80
Post and telecommunications	11	2.61
Education	9	2.14
Total	421	100.00