originally: http://www.oclc.org/research/projects/archive/wcp/stats/misc.htm
Public Web sites whose primary content is sexually explicit images or text.
| No. of sites | Percent of public sites | |
|---|---|---|
| 1998 | 34,000 | 2.3% |
| 1999 | 42,000 | 1.9% |
| 2000 | 68,000 | 2.3% |
| 2001 | 74,000 | 2.4% |
| 2002 | 102,000 | 3.3% |
Percent of IP addresses identifying a Web site in Year A also identifying a Web site in Year B. For example, 56% of the IP addresses identifying a Web site in the 1998 sample also identified one in the 1999 sample.
| 1998 | 1999 | 2000 | 2001 | 2002 | |
|---|---|---|---|---|---|
| 1998 | 100% | 56% | 35% | 25% | 13% |
| 1999 | NA | 100% | 55% | 37% | 19% |
| 2000 | NA | NA | 100% | 55% | 33% |
| 2001 | NA | NA | NA | 100% | 51% |
| 2002 | NA | NA | NA | NA | 100% |
| 1998 | 1999 | 2000 | 2001 | 2002 | |
|---|---|---|---|---|---|
| 1998 | 100% | 52% | 28% | 15% | 8% |
| 1999 | NA | 100% | 50% | 27% | 14% |
| 2000 | NA | NA | 100% | 47% | 26% |
| 2001 | NA | NA | NA | 100% | 46% |
| 2002 | NA | NA | NA | NA | 100% |