condition mean min max 0 h after light 50.34845 45.1133 55.5836 2 h after light 60.92175 59.2852 62.5583 4 h after light 65.46835 63.3626 67.5741 8 h after light 83.11015 67.3275 98.8928 12 h after light 131.3615 123.524 139.199 2 h after dark 180.464 177.918 183.01 4 h after dark 95.62805 79.9111 111.345 8 h after dark 69.2989 68.8408 69.757 12 h after dark 60.0183 53.7783 66.2583