Final answer:
The percentage of engineering respondents working in Europe is not provided in the given information. However, engineering has become a global career with teams composed of people from around the world.
Step-by-step explanation:
Based on the given information, the percentage of engineering respondents working in Europe is not provided. However, it is mentioned that engineering has become a global career in the past ten years and that engineering teams are composed of people from around the world. This suggests that there is a significant presence of engineering professionals in Europe, but an exact percentage cannot be determined.