/nsfnet/statistics/history.bytes NSFNET Byte Traffic History (in billions of bytes) 1991 1992 1993 1994 Jan 2256 4782 8609 Feb 2371 5015 9303 Mar 1268 2761 6053 11226 Apr 1402 2848 6219 11587 May 1442 3061 5845 Jun 1244 3274 6195 Jul 1594 3373 6389 Aug 1484 3200 6631 Sep 1769 3315 7022 Oct 1879 3903 8468 Nov 1959 4651 8483 Dec 1956 4372 8283 NOTE: March 1991, byte traffic measurements are now available. March 1991, NSFNET traffic is now measured as the total packets for T1 and T3 networks. May 1992, is an estimated value; actual value is unavailable. December 1992, all traffic is on the T3 network; the T1 has been retired.