Answer
The vertical axis does not start at 0.
If the vertical axis does not start at 0, the height of the bars are not in the correct proportion.
Work Step by Step
The reader may conclude that there are 12 times more employed people aged 45 to 55 than people aged 25 to 35. But, the truth is that there are about $\frac{15.9}{4.8}\approx3.3$ times more employed people aged 45 to 55 than people aged 25 to 35.