condition mean min max 0 h after light 1.64467 1.50311 1.78623 4 h after light 6.275980000000001 3.4518 9.10016 8 h after light 1.8331849999999998 1.48445 2.18192 4 h after dark 2.251605 1.40344 3.09977 8 h after dark 2.51053 2.04068 2.98038 12 h after dark 2.187855 2.16376 2.21195