| Survey Adjusted Replied
Date | Host Count Host Count To Ping*
--------+------------------------------------
Jan 2019|1,012,695,272 -
Jul 2018|1,015,787,389 -
Jan 2018|1,003,604,363 -
Jul 2017|1,074,971,748 -
Jan 2017|1,062,660,523 -
Jan 2016|1,048,766,623 -
Jul 2015|1,033,836,245 -
Jan 2015|1,012,706,608 -
Jul 2014|1,028,544,414 -
Jan 2014|1,010,251,829 -
Jul 2013| 996,230,757 -
Jan 2013| 963,518,598 -
Jul 2012| 908,585,739 -
Jan 2012| 888,239,420 -
Jul 2011| 849,869,781 -
Jan 2011| 818,374,269 -
Jul 2010| 768,913,036 -
Jan 2010| 732,740,444 -
Jul 2009| 681,064,561 -
Jan 2009| 625,226,456 -
Jul 2008| 570,937,778 -
Jan 2008| 541,677,360 -
Jul 2007| 489,774,269 -
Jan 2007| 433,193,199 -
Jul 2006| 439,286,364 -
Jan 2006| 394,991,609 -
Jul 2005| 353,284,187 -
Jan 2005| 317,646,084 -
Jul 2004| 285,139,107
Jan 2004| 233,101,481 -
Jan 2003| 171,638,297 -
Jul 2002| 162,128,493 -
Jan 2002| 147,344,723 -
Jul 2001| 125,888,197
Jan 2001| 109,574,429 -
Jul 2000| 93,047,785 -
Jan 2000| 72,398,092 -
Jul 1999| 56,218,000 -
Jan 1999| 43,230,000 8,426,000
Jul 1998| 36,739,000 6,529,000
Jan 1998| 29,670,000 5,331,640 [first NEW Survey]
Jul 1997| 19,540,000 26,053,000 4,314,410 [last OLD Survey]
Jan 1997| 16,146,000 21,819,000 3,392,000
Jul 1996| 12,881,000 16,729,000 2,569,000
Jan 1996| 9,472,000 14,352,000 1,682,000
Jul 1995| 6,642,000 8,200,000 1,149,000
Jan 1995| 4,852,000 5,846,000 970,000
Jul 1994| 3,212,000 707,000
Jan 1994| 2,217,000 576,000
Jul 1993| 1,776,000 464,000
Jan 1993| 1,313,000
[* estimated by pinging a sample of all hosts]
[adjusted host count was computed by increasing the old survey host count by the percentage of domains that did not respond to the old survey method]
Produced for ISC by 3way Labs
