Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
how many books are in the library of congress | 1.53 | 0.8 | 9335 | 14 |
how many books in the library of congress | 0.37 | 0.1 | 6663 | 39 |
how many books does the library of congress | 0.31 | 0.8 | 3880 | 77 |
how many books does library of congress have | 0.98 | 0.3 | 578 | 54 |
library of congress has how many books | 0.68 | 0.6 | 5737 | 25 |