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