The line graph shows the Population in the state of Oregon by county. Three counties that incresed in population between 1940 and 2000, Columbia, Yamhill and Washington had shown the different increasing.

The line graph illustrates the information of citizens living in the state of Oregon by county.

This

portrays the information about the population in

three

distinct counties

such

as Columbia, Yamhill and Washington during the years 1940-2000, measured in thousands.

Overall

, it can be seen that Washington has shown a dramatic increase compared to the other two provinces, which shows a parallel

growth

. During the year 1940,

according to

statistics masses,

growth

was reported at 75,000 which, escalated moderately to around 130 thousand within

three

decades.

However

, after that year, there was a rapid rise in the birth rate observed year between 1970 to 2000 , which accounted for 240,000 people at the highest.

On the other hand

, Columbia and Yamhill had shown collateral development in the

growth

rate. In the first

three

decades, it was noted around 32 and 45 thousand in Columbia and Yamhill respectively.

Whereas

, after that in the following

three

decades it showed sustainable

growth

which consisted of 60 and 70,000 respectively.