text: This three-sector system does not facilitate a realistic quantitative picture about working conditions. For 
  example, statistically an accountant in a steel plant is counted as an employee in industry, whilst an 
  employee of a subcontractor who does heavy manual repair work in the same steel plant is counted as 
  a service worker. 
  
  In the same way, the construction sector does not fit well into this triple categorisation; statistical offices 
  often separate it from industry in their classification systems. 
  
  However,**having these limitations and possible distortions**in mind, the sectoral categorisation 
  system helps to broadly describe changes of the economic structure that obviously influence working 
  conditions. 
  
  Even during the past three decades the trend from agriculture and industry to other service-dominated 
  sectors continued in the EU, as the following Eurostat figure shows. The share of employees in 
  agriculture went down from 8% to 4%, and also down in industry from 21% to 15%, construction 
  remained quite stable between 6% and 7% whilst all the service sectors (except ‘Financial services and 
  insurance’) gained a bigger share, particularly ‘Professional, scientific and technical activities’. 
  
  European Agency for Safety and Health at Work – EU-OSHA 
  101 