The graph illustrates the change in amount of salary of three different fields over a period of 40 years from 1970 to 2010.
Overall, the field of engineering and IT shows constant increment in salary throughout the whole period. Both fields show no downward movement of salary amount over the whole period. However, there is fluctuation in the salary of professional sports.
The salary amount of engineering field shows marginal increment from 55 thousand in the year 1970 and peaked at 70 thousand in the year 2010. While the field of IT shows pronounced increase in the amount of salary from 35 thousand to 100 thousand in the same period. Despite of being the only field showing much more fluctuations and sometimes salary decrement, the salary amount is quite higher as compared to other two fields. The professional sports show marginal increase in salary between 1970 to 1980 and then decreases by an amount 5 thousand in the year 1990 and peaked at an amount of 145 thousand in the year 2000. While the salary drop down sharply by amount 3500 and reaches lowest point in the year 2010.