condition mean min max 0 h after light 7.743085 6.95528 8.53089 2 h after light 11.469249999999999 10.945 11.9935 4 h after light 14.248750000000001 12.7414 15.7561 8 h after light 13.1318 12.0108 14.2528 12 h after light 10.140725 9.63135 10.6501 2 h after dark 8.99162 7.45404 10.5292 4 h after dark 7.78373 7.67705 7.89041 8 h after dark 6.896985 6.74036 7.05361 12 h after dark 7.674395 7.31584 8.03295