date, RIR, IPv4 adoption, IPv6 adoption 20230310, arin, 0.2904, 0.3466 20230310, ripencc, 0.5939, 0.3635 20230310, lacnic, 0.4129, 0.4763 20230310, afrinic, 0.2413, 0.0702 20230310, apnic, 0.3297, 0.2321