date       RIR       IPv4 adoption   IPv6 adoption
20210902   arin       0.2194          0.1994
20210902   ripencc    0.4932          0.3212
20210902   afrinic    0.1544          0.0566
20210902   lacnic     0.2951          0.3826
20210902   apnic      0.2522          0.1451