date, RIR, IPv4 adoption, IPv6 adoption
20211201, ripencc,  0.5067,  0.3314
20211201, arin,  0.2317,  0.2002
20211201, lacnic,  0.3334,  0.3995
20211201, afrinic,  0.1737,  0.0591
20211201, apnic,  0.2115,  0.1500