date       RIR       IPv4 adoption   IPv6 adoption
20190520   ripencc    0.3636          0.2600
20190520   afrinic    0.0444          0.0161
20190520   apnic      0.0741          0.0864
20190520   lacnic     0.1879          0.0440
20190520   arin       0.0512          0.0150