date, RIR, IPv4 adoption, IPv6 adoption
20210918, arin,  0.2195,  0.1998
20210918, apnic,  0.2544,  0.1452
20210918, ripencc,  0.4963,  0.3211
20210918, afrinic,  0.1591,  0.0568
20210918, lacnic,  0.2951,  0.3841