the graph below presents the employment patterns in the USA between 1930 and 2010

The line graph shows information about the occupation patterns in the USA from 1930 to 2010.
It can be clearly seen that the number of farming, fishing and foresting witnessed a download trend while there were upward trends in industry, technical, sales and office and other services.
In 1930, the quantity of employment patterns in farming, fishing and foresting was highest with just under 80. While the figure in four other services started very low. Industrial and technical started in the same number whereas the first number of sales and office was over 10 equal to the figure of other services.
Regarding the year 1970, the number of farming, fishing and foresting decreased significantly from 60 to lowest in 2000. The figure of other services was the same at over 10 in 1970. After that, the number of industrial, sales and office and technical increased to over 25 in the last year while other services kept the unchanged figure.