The pie charts give information about the percent of individuals with bachelor, master or phd degree and occupations worked in an engineering sphere in 1980 and 2008.
Overall, it is clear that in 2008 increased three categories, Phd science, Master Arts and Phd Arts. Number of other two types of people was decreased in 2008. Moreover, the group of persons in Master Sciense was constant for all years.
In 2008 the section of first degree arts contained 11 percent and it was less for 14 percent than in 1980. The next fragment masters art was increased for only 1 percent in 2008. The number of workers in Phd Arts was inclined for 5 percent in 2008 and consisted 7 percent. Also staff with bachelor degree was included 19 and 10 percent in 1980 and 2008 respectively. However, Phd science employees was more in 2008 than 1980 and accepted 30 percent.