condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0661022 0.0 0.160566 12 h after light 0.12191253333333334 0.0561016 0.176214 4 h after dark 0.509585 0.374471 0.662436 8 h after dark 0.049167999999999996 0.0 0.147504 12 h after dark 0.11028133333333334 0.0 0.330844