Overall proportion of An. gambiae s.l. taxa per weekly sample per trapping method. Solid dots represent the median rate for each trap type. Empty circles represent outliers. Bottom and top of the box show the 25th and 75th percentile respectively. Whiskers show maximum value or 1.5 times the interquartile range – whichever is the smaller. SRB-IN=sticky resting box collections indoors; BP=back-pack aspirations indoors; SRB-OUT=sticky resting box collections outdoors; PIT=collections in outdoor pit-shelters.