date, RIR, IPv4 adoption, IPv6 adoption
20211218, arin,  0.2322,  0.2003
20211218, afrinic,  0.1745,  0.0614
20211218, apnic,  0.2260,  0.1917
20211218, ripencc,  0.5075,  0.3320
20211218, lacnic,  0.3689,  0.4043