The line graph below gives information about the changes happening in 15 years in the quantities of particular cow breeds. In general, it’s clear that a stable period rates of the Angus, Holstein, and Jersey that illustrated significant rise over the period, while the line of Guernsey display fluctuations.
To commence, the number of Jersey and Guernsey were approximately closer, 3,500. However, the indicator changed in 2 years. Jersey’s line slowly rised, while Guernsey’s line declined. The Jersey’s quantity rised from 2,500 to 4,500 in 6 years. And then the high index was in 2014. Since 2010, Guernsey starts to decrease dramatically from 3,000 to 200 number. Afterwards, Guernsey disappeared, thus they were non-existent.
When it comes to types of cows with lower quantities, Angus number stayed stable period throughout 8 years. After 2008, index starts to grow. And in 2014, Angus reached the peak. At the same time, Holstein also slowly rised however his high score was angus’s low number.