This line illustrate amount of illnes in USA over 9 years’ time period.
Looking from overall perspective, it is reaaly apparent that number of disease declined by the end of period.
In the beginning, more precisely in 1983 the number of cases of disease was 100, after which it slightly estalated from 100 to approximately 105. Folowing that level of sickness continued to rise, and as a result it reached to 200. Although the sum start to fail between 1987 and 88, subsequently amount of instance of illnes experienced a dramatically gone up until the 400 in the 1989. As a consequense it reach the peak. In the next year it gradually failed to 350. Thereafter in the next year it was stabilised. However in the 1991 there was a significant decrease of situation of illness, amount just hit the low. Consequently in the 1992 the number of cases of disease was just disappeared.
