date, RIR, IPv4 adoption, IPv6 adoption
20211205, arin,  0.2317,  0.2002
20211205, lacnic,  0.3336,  0.4004
20211205, apnic,  0.2255,  0.1500
20211205, ripencc,  0.5070,  0.3325
20211205, afrinic,  0.1729,  0.0594