Sentence:  The results of these inquiries were used to adjust compilations of data from the registers and to <WSD>provide</WSD> various ratios and rates by districts , including birth and death rates , general fertility rates , distributions by marital status , fertility of wives separately in polygynous and non-polygynous households , infant mortality , and migration . 
Meaning of the word marked with <WSD> tags:  give something useful or necessary to