condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.026773333333333333 0.0 0.16064 10 h after light 0.037943 0.0 0.227658 14 h after light 0.0 0.0 0.0 18 h after light 0.0 0.0 0.0 2 h after dark 0.022142833333333334 0.0 0.132857