condition mean min max 0 h after light 3.84478 3.07253 4.61703 4 h after light 2.18485 1.95646 2.41324 8 h after light 2.117315 1.95478 2.27985 4 h after dark 3.590875 3.39482 3.78693 8 h after dark 3.7987849999999996 3.71954 3.87803 12 h after dark 4.39476 4.31476 4.47476