condition mean min max 4 h after light 14.90488 13.346670000000001 16.71565 8 h after light 10.108203666666668 5.259931 14.918220000000002 12 h after light 18.914653333333334 17.14873 21.45733 16 h after light 10.947510666666666 6.3557120000000005 13.74145 4 h after dark 9.448485666666667 7.829144 10.844660000000001 8 h after dark 5.125449333333333 2.157559 7.22967