condition mean min max 4 h after light 81.80295 79.3578 84.2481 8 h after light 73.0641 69.75 76.3782 12 h after light 80.66955 70.9376 90.4015 4 h after dark 90.8496 85.4901 96.3909 8 h after dark 109.77833333333334 105.342 114.722 12 h after dark 99.30423333333333 97.9975 100.931