Zhang Lin is 1.53m tall this year, which is 0.03m taller than last year. How much is Zhang Lin's height increased this year compared to last year?
张林今年身高1.53m，比去年长高了0.03m，今年张林的身高比去年增长了百分之几？
<gadget id="calculator">1.53 - 0.03</gadget>
<output>1.5</output>

<gadget id="calculator">0.03 / 1.5</gadget>
<output>0.02</output>

<result>0.02</result>