date       RIR       IPv4 adoption   IPv6 adoption
20190921   arin       0.0560          0.0165
20190921   lacnic     0.2087          0.0462
20190921   ripencc    0.3824          0.2633
20190921   afrinic    0.0556          0.0470
20190921   apnic      0.0928          0.0871