The distribution of measured A_V from our sample with redshift as compared to that of Kann et al. (2010). The dashed line is the theoretical distribution, normalized to the same number of objects in the sample, of a Monte Carlo simulation of random sightlines through an evolving galaxy model (Updike et al. 2009a). A KS-test returns a rejection probability of 54% for the null hypothesis that the two distributions are drawn from the same sample.