condition mean min max 0 h after light 14.158615 8.94003 19.3772 2 h after light 17.0571 14.7026 19.4116 4 h after light 18.97285 13.6768 24.2689 8 h after light 19.437079999999998 9.12056 29.7536 12 h after light 16.6292 14.2192 19.0392 2 h after dark 13.433565 8.54963 18.3175 4 h after dark 19.6162 17.9478 21.2846 8 h after dark 26.58625 24.648 28.5245 12 h after dark 20.24555 18.0374 22.4537