condition mean min max 0 h after light 7.771405 7.39048 8.15233 2 h after light 9.53238 9.39353 9.67123 4 h after light 8.1488 7.36028 8.93732 8 h after light 8.180395 7.3114 9.04939 12 h after light 7.539655 6.14087 8.93844 2 h after dark 5.942635 5.52168 6.36359 4 h after dark 7.3435950000000005 6.95484 7.73235 8 h after dark 9.355129999999999 9.16949 9.54077 12 h after dark 8.13709 8.01516 8.25902