condition mean min max 3 h after light 103.2372 85.4666 123.946 6 h after light 93.9363 79.3533 109.05 9 h after light 78.0282 73.986 82.5565 12 h after light 88.15895 65.2781 102.046 3 h after dark 45.3271 41.8434 50.6873 6 h after dark 43.885933333333334 39.7791 50.9606 9 h after dark 47.41963333333334 43.2087 50.0643 12 h after dark 46.53075 45.2376 47.8239