condition mean min max 0 h after light 0.0257313 0.0 0.0514626 4 h after light 0.0261716 0.0 0.0523432 8 h after light 0.0508235 0.0 0.101647 4 h after dark 0.0253261 0.0 0.0506522 8 h after dark 0.0 0.0 0.0 12 h after dark 0.025651 0.0 0.051302