date       RIR       IPv4 adoption   IPv6 adoption
20211112   ripencc    0.5060          0.3294
20211112   arin       0.2314          0.2000
20211112   apnic      0.2113          0.1513
20211112   afrinic    0.1691          0.0586
20211112   lacnic     0.3140          0.3978