Test statistics from the SADIE analysis of the five plots computed for 2006 and 2007.

Ia is an overall index of aggregation and Pa the associated probability value. P-values<0.025 indicates a statistical significant aggregated distribution (5%, two-tailed) and p-values>0.975 indicates a significant regular distribution (5%, two-tailed). Vi and Vj are indices for sources and sink areas, respectively, and Pi/Pj values indicate the probability of obtaining a test value respectively exceeding or below the observed test value after 6000 randomizations. The last two columns reports the percentage of sink and source area in a plot.