prefixes seen by given number of peers Nov.01, 2001, 26 tables 1 3925 2 1880 3 490 4 259 5 595 6 217 7 131 8 86 9 65 10 29 11 220 12 57 13 14 14 98 15 20 16 12 17 105 18 8 19 13 20 15 21 7 22 7 23 55 24 215 25 996 26 102000