condition mean min max 4 h after light 0.5201215 0.378968 0.661275 8 h after light 0.3226295 0.277502 0.367757 12 h after light 0.6091985 0.538215 0.680182 4 h after dark 0.7283383333333334 0.314473 1.11688 8 h after dark 0.510574 0.0 0.938153 12 h after dark 0.32811799999999997 0.0 0.593042