condition mean min max 0 h after light 0.7811595 0.758145 0.804174 4 h after light 0.863298 0.363526 1.36307 8 h after light 1.1365815000000001 0.817143 1.45602 4 h after dark 2.741465 2.02275 3.46018 8 h after dark 1.4328400000000001 1.28448 1.5812 12 h after dark 0.9657465 0.668053 1.26344