date       RIR       IPv4 adoption   IPv6 adoption
20190716   arin       0.0544          0.0160
20190716   ripencc    0.3684          0.2644
20190716   lacnic     0.2026          0.0449
20190716   afrinic    0.0500          0.0180
20190716   apnic      0.0762          0.0864