english: Figure 2.2: Estimated trends in anger over the course of September 11, 2001 based on 85,000 American pagers (Back, Küfner, and Egloff 2010; Pury 2011; Back, Küfner, and Egloff 2011).
non_english: Figear 2.2: Tomhas air gluasadan ann an corruich thairis air cùrsa den t-Sultain 11, 2001 stèidhichte air 85,000 Ameireaganach pagers (Back, Küfner, and Egloff 2010; Pury 2011; Back, Küfner, and Egloff 2011) .