You should attach the right graph with your essay so we could provide you with more comments :)
leisure activities of adults
By contrast, other activities were the smallest one in each year.
This sentence is quite confusing. I can see from your fourth paragraph that the proportions of other activities are not quite small.
adults spent their 32% of their spare time
on watching TV
a little fell
a slight fall
Enjoying with other attitudes were only 6% of the total in 1985
Other activities accounted for only 6% of the total spare time of European adults in 1985
as a result of computer, which was 27% in 1995, talking with family of adolescents rapidly decreased from just 18% in 1985 to only 7% in 1995
You don't need to give any interpretation from the data. There may be other reasons why adolescents talked less with their family.