In December 2009, the results of the filtering trial were released. Stephen Conroy stated, "The report into the pilot trial of ISP-level filtering demonstrates that censoring RC-rated material can be done with 100 percent accuracy and negligible impact on Internet speed". However, concerns have been raised about the report: only a small minority of ISP users participated; the trial did not test using any high-speed Internet connections similar to those available with the National Broadband Network; there is evidence that the filter was evaded; and with only 600 to 700 sites on the RC blocklists, the effect of the filter would be marginal at best.