condition mean min max 4 h after light 131.0768085 126.464353 135.689264 8 h after light 124.8369705 118.124154 131.549787 12 h after light 176.4198265 154.854136 197.985517 4 h after dark 144.9763505 127.381438 162.571263 8 h after dark 134.4118325 100.255114 168.568551 12 h after dark 127.616672 127.616672 127.616672