I'm not familiar with the paper, as I said. The general social survey is not a longitudinal survey; it's a cross-sectional survey that we conduct every five years. The theme that we collect on changes over time.
Information on the victimization cycle, for example, is collected on a different cycle. This particular survey we collect every five years. So the last time we collected it we would have historical information available, but it's not a longitudinal survey that follows the same respondents over time.