condition mean min max 3 h after light 0.172994 0.0 0.518982 6 h after light 0.0 0.0 0.0 9 h after light 0.13172763333333334 0.0898049 0.163058 12 h after light 0.0288223 0.0 0.0864669 3 h after dark 0.15101799999999999 0.122181 0.19958 6 h after dark 0.07671266666666667 0.0 0.125832 9 h after dark 0.035199666666666664 0.0 0.105599 12 h after dark 0.0 0.0 0.0