The original version of this Article contained errors in Figs. 2 and 5. In Fig. 2, the graphs were inadvertently displayed as line graphs (2a) and bar charts (2b) rather than dot plots. Figure 2b and 2c were mislabeled as 2c and 2b; this has now been corrected. In Fig. 5c the last row incorrectly read “X/X X.0” rather than “6/9 66.7”. This has now been corrected in the PDF and HTML versions of the Article.