Here is what the chart is wrong
It did not start from 0
It emphasized the difference between 68 and 69, However, actually it is just 1 in terms of number difference
Do not overemphasize the difference
Here is what the chart is wrong
It did not start from 0
It emphasized the difference between 68 and 69, However, actually it is just 1 in terms of number difference
Some suggestions for how to improve
Do not start from 0
Do not overemphasize the difference
use the same color, the red and deep blue is ugly