date       RIR       IPv4 adoption   IPv6 adoption
20211120   arin       0.2315          0.2002
20211120   lacnic     0.3314          0.3984
20211120   ripencc    0.5065          0.3276
20211120   apnic      0.2114          0.1514
20211120   afrinic    0.1715          0.0589