The results suggest that, in comparison with a situation in which no immigrant workers are employed, production increases considerably due to the additional immigrant workforce. Production attributed to the immigrant workforce expands over time, in accordance with the increasing numbers of immigrants, but also in line with the shift of workers to the relatively productive service sector (see Chapter 3). Due to the different methodology, the estimated contribution of immigrant workers in 2011 is higher than the estimate presented earlier (Figure 5.4), and suggests that the contribution of immigrant workers is above their share in employment.