condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 3.406765 0.0 6.81353 12 h after light 5.4271 0.0 10.8542 2 h after dark 3.706485 0.0 7.41297 4 h after dark 0.0 0.0 0.0 8 h after dark 3.59175 0.0 7.1835 12 h after dark 0.0 0.0 0.0