condition mean min max 4 h after light 0.102268 0.0 0.204536 8 h after light 0.2219405 0.0 0.443881 12 h after light 0.2354255 0.20239 0.268461 4 h after dark 0.1768985 0.0 0.353797 8 h after dark 1.1905135 0.975137 1.40589 12 h after dark 0.9507325 0.872745 1.02872