The chart illustrates how adult people in the US 
had
 spent their leisure time from 1980 to the present. 
Wrong verb form
have
Overall
, the number of Linking Words
hiking was
 skyrocketed with a sharp figure, Verb problem
hikers
while
 the proportion of theatre decreased marginally. Linking Words
Moreover
, the percentage of Linking Words
usage internet
 rose considerably. 
It can be seen from the graph that the average rate of walking increased dramatically from 20 % in Correct word order
internet usage
1980s
 to 80 % in Correct article usage
the 1980s
2010s
. Correct article usage
the 2010s
Likewise
, free time activity of the senior citizens in the US by Linking Words
usage
 Replace the word
using
internet
, from the beginning of the period at 5 %, went up slightly by 15 % in Correct article usage
the internet
2000s
 until rocketing significantly by 50 % in a decade. 
From the start of the year, the proportion of watching TV was 60 % more than other leisure time activities of the elderly in the US, and it Correct article usage
the 2000s
reached gradually
 Correct word order
gradually reached
by 
70 % in Change preposition
apply
2000s
 before falling slowly by 65 % at the Correct article usage
the 2000s
finish
 of the period. In Check wording
end
1980s
, the number of Correct article usage
the 1980s
theatre
 was moved downward with the sharp trend from 50 % to 30 % in Fix the agreement mistake
theatres
1990s
, Correct article usage
the 1990s
then
 it rose steadily by 45 % Linking Words
Linking Words
at
 the end of the year. Change preposition
by
Moreover
, the average of the reading Linking Words
was 
fluctuated slightly from 30 % in Verb problem
apply
1980s
 to 60 % in Correct article usage
the 1980s
2010s
.Correct article usage
the 2010s