Sentence:  According to a newspaper report of the 1961 statistics of the Church of England , the `` total of confirmed members is 9748000 , but only 2887671 are registered on the parochial church rolls '' , and `` over 27 million people in England are baptized into the Church of England , but <WSD>roughly</WSD> only a tenth of them continue '' . 
Meaning of the word marked with <WSD> tags:  (of quantities) imprecise but fairly close to correct