FIG. 2.

Shipped sample weight for 30 anatomic sites combining 2015–2017 for each. Graphed as in Figure 1 except that a linear scale is used (cropping four sites with weights >10,000 mg) and shows how less common sample weights in the top 10 percentiles would skew an average that included them. Four groups (A–D) were identified by eye based on average weight of the middle 80 percentiles. Eighteen other anatomic sites had few samples and are grouped as other. N, number of samples.