Fig. 4
From: Mapping disparities in homicide trends across Brazil: 2000–2014

Homicide trends for municipalities with populations of at least 250 thousand clustered into four groups using principal component cluster analysis. Each curve represents the average trend within each cluster. The number of municipalities in each cluster are: a. 21 (19.1%), b. 32 (29.1%), c. (30.0%) and d. 24 (21.8%). The homicide rates show an overall decreasing trend for some municipalities, and an increasing trend in others