condition mean min max 0 h after light 0.9280945 0.884051 0.972138 4 h after light 2.16471 1.7389 2.59052 8 h after light 2.830805 2.54066 3.12095 4 h after dark 3.12783 3.10756 3.1481 8 h after dark 2.7664299999999997 2.34861 3.18425 12 h after dark 1.2618455 0.928881 1.59481