condition mean min max 0 h after light 8.871265000000001 8.49896 9.24357 4 h after light 3.43762 2.74658 4.12866 8 h after light 2.92478 2.75606 3.0935 4 h after dark 9.103645 7.26349 10.9438 8 h after dark 5.343515 4.95041 5.73662 12 h after dark 7.23923 6.4506 8.02786