condition mean min max 4 h after light 11.641636 11.429306 11.853966 8 h after light 11.074471 11.074471 11.074471 12 h after light 12.959674 11.918919 14.000429 4 h after dark 11.4271735 9.603177 13.25117 8 h after dark 10.429489 9.710065 11.148913 12 h after dark 11.074471 11.074471 11.074471