condition mean min max 4 h after light 5500.960333333333 5373.9580000000005 5751.184 8 h after light 6319.511666666667 6029.464 6826.068 12 h after light 3604.695333333333 3145.1 4268.615 16 h after light 5071.715999999999 4290.338 6153.491999999999 4 h after dark 5773.784666666666 5047.99 7199.928000000001 8 h after dark 4322.903 3336.906 5630.619000000001