condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.03776 0.0 0.11328 12 h after light 0.02365223333333333 0.0 0.0709567 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.03563466666666667 0.0 0.106904