condition mean min max 0 h after light 1080.205 1057.28 1103.13 4 h after light 755.7355 730.316 781.155 8 h after light 638.056 608.746 667.366 4 h after dark 799.144 783.642 814.646 8 h after dark 811.8969999999999 803.173 820.621 12 h after dark 1016.347 953.924 1078.77