condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.02689395 0.0 0.0537879 12 h after light 0.0 0.0 0.0 4 h after dark 0.008885800000000001 0.0 0.0266574 8 h after dark 0.023617228333333334 0.0 0.0705886 12 h after dark 0.0041437 0.0 0.0124311