condition mean min max 2 h after light 4.1204849999999995 1.8905 9.04482 6 h after light 4.431173333333334 1.94167 8.26212 10 h after light 4.243371 0.974746 7.50453 14 h after light 5.334955 1.43691 8.71439 18 h after light 5.45613 2.76617 8.39647 2 h after dark 4.4827433333333335 2.16091 8.39502