condition mean min max 0 h after light 17.1447 14.875 19.4144 2 h after light 4.069105 4.00009 4.13812 4 h after light 4.908519999999999 4.64525 5.17179 8 h after light 11.1938 10.9663 11.4213 12 h after light 20.3671 18.245 22.4892 2 h after dark 18.2941 17.4824 19.1058 4 h after dark 16.24705 15.7307 16.7634 8 h after dark 24.9546 24.8743 25.0349 12 h after dark 19.76245 19.3443 20.1806