date, RIR, IPv4 adoption, IPv6 adoption
20211204, ripencc,  0.5070,  0.3324
20211204, lacnic,  0.3336,  0.4004
20211204, afrinic,  0.1729,  0.0594
20211204, arin,  0.2317,  0.2002
20211204, apnic,  0.2255,  0.1500