You know vitamins and nutrition?
Maybe you already know the wikipedia article on „Dietary supplement“?
wikipedia – english – 158 lines of source-text – taking for 100%
wikipedia – german – 95 lines of source-text – that’s a 95/158 = 63,33%
wikipedia – polish – 17 lines of source-text – that’s a 17/158 = 11,33% of the information contained in the english version
Or do polish people know 88,87% less about it?
My conclusion: There are quite many chapters missing in the last one 🙂