The line graph illustrates the American labor force employment for five different sectors from 1930 to 2010.
Overall, the Farming, Fishing, and Foresting sectors are at the peak at the beginning of 1930. However, it is declined significantly by the end of the period. Meanwhile, the Industrial sector is increased significantly starting from 1970 to 1990 before remaining steady for the rest of the years. Furthermore, the other sectors are fluctuating over the given periods.
In 1930 the number of farming, fishing, and forests peaked at around 70% of the total number of labor force employment. However, at the end of 2010, those sectors have become the least. In contrast, the industrial sector starting from the very bottom can experience an increase and become the most significant influence, at around 40% of the total employment rate.
Technical, sales and office, and other services are fluctuating for the given period. Technical at the end of 2010 reach around 30 %. Sales and office, and other services are become the third and fourth with around 20% and 10% respectively. 
The line graph illustrates the American labor force employment for five  
different
  sectors
 from 1930 to 2010. 
Overall
, the Farming, Fishing, and Foresting  
sectors
 are at the peak at the beginning of 1930.  
However
, it  
is declined
  significantly
 by the  
end
 of the period. Meanwhile, the Industrial  
sector
  is increased
  significantly
 starting from 1970 to 1990  
before
 remaining steady for the rest of the years.  
Furthermore
, the other  
sectors
 are fluctuating over the  
given
 periods.
In 1930 the number of farming, fishing, and forests peaked at  
around
 70% of the total number of labor force employment.  
However
, at the  
end
 of 2010, those  
sectors
 have become the least.  
In contrast
, the industrial  
sector
 starting from the  
very
 bottom can experience an increase and become the most significant influence, at  
around
 40% of the total employment rate.
Technical, sales and office, and other services are fluctuating for the  
given
 period. Technical at the  
end
 of 2010 reach  
around
 30 %. Sales and office, and other services  
are become
 the third and fourth with  
around
 20% and 10%  
respectively
.