WB fixed it in terms of constant International $, with base year 2005 - if I can remember correctly. So it&#x27;s already inflation adjusted because it&#x27;s at constant prices and not nominal prices.<p>Having said that, in most developing countries, being on the poverty line would mean that you have just enough for clothing and feeding yourself.<p>Nevertheless, it&#x27;s exciting to see millions graduating out of it in just a decade. Specially for me, because I&#x27;m Indian.<p><a href="http:&#x2F;&#x2F;data.worldbank.org&#x2F;indicator&#x2F;SI.POV.DDAY" rel="nofollow">http:&#x2F;&#x2F;data.worldbank.org&#x2F;indicator&#x2F;SI.POV.DDAY</a><p><pre><code>    Population below $1.25 a day is the percentage 
    of the population living on less than $1.25 a 
    day at 2005 international prices
</code></pre>
Also you might find this interesting - <a href="http:&#x2F;&#x2F;econ.worldbank.org&#x2F;WBSITE&#x2F;EXTERNAL&#x2F;EXTDEC&#x2F;EXTRESEARCH&#x2F;0,,contentMDK:22510787~pagePK:64165401~piPK:64165026~theSitePK:469382,00.html" rel="nofollow">http:&#x2F;&#x2F;econ.worldbank.org&#x2F;WBSITE&#x2F;EXTERNAL&#x2F;EXTDEC&#x2F;EXTRESEARCH...</a><p><pre><code>   Moreover, the choice between $1.00 a day and $1.25 
   a day (or even higher lines) makes no difference to 
   the Bank’s claim that measures of absolute poverty 
   have fallen in the developing world over 1981-2005.</code></pre>