Nah, NHTSA and DOT, for all their purported unbiasedness, tend to report stats to disfavor bikes, as in "deaths for over-40 bikers rose over the period of 2001-2004", with no acknowledgement of whether the overall number of bikers over 40 also rose during that period. So, did the percentage of over-40 bikers that were killed out of the whole group go up, or did it stay the same and just the raw numbers go up? In all likelihood, the percentage of over-40 bikers killed dropped relative to the total number of over-40 bikers, but we may never know unless we get access to the raw data, and maybe not even then, depending on how the study was run.