Fix disfluencies in the sentence: including we can see the expending into 1981 was totaly different without the others, we can seeing fistable above the insurances it is the 2% because it was not an obligation but also the teachers ' salary was the 40% because the school is starting around that time and it wasn't nesesary to employed more teachers.
As we can see the expenditure in 1981 was totally different from the other years, we can see fistable on the insurance accounted for 2% because it was not an obligation but also the teachers ' salaries accounted for 40% because the school was starting by that time and it wasn't necessary to employ more teachers.