condition mean min max 4 h after light 2.036035 1.66294 2.40913 8 h after light 2.8244 2.78463 2.86417 12 h after light 2.8041799999999997 2.784 2.82436 4 h after dark 3.33066 3.28395 3.37737 8 h after dark 2.350305 2.33991 2.3607 12 h after dark 2.578475 2.39114 2.76581