9. Segment reporting
The following table summarizes segment reporting. The sum of the amounts of the two segments equals the total for the Group in each of the periods.
Three months ended March 31, | |||||||||
2019 | 2018 (1) (2) | ||||||||
(€ in thousands) | |||||||||
SYSTEMS | SERVICES | SYSTEMS | SERVICES | ||||||
Revenues | 2,415 | 3,150 | 1,375 | 3,677 | |||||
Gross profit | 829 | 1,084 | 381 | 1,752 | |||||
Gross profit in % | 34.3 | % | 34.4 | % | 27.7 | % | 47.6 | % |