condition mean min max 0 h after light 2.251175 2.10948 2.39287 4 h after light 0.29100024999999996 0.0943695 0.487631 8 h after light 0.576381 0.568171 0.584591 4 h after dark 0.7994055 0.188751 1.41006 8 h after dark 0.52125 0.377069 0.665431 12 h after dark 2.5018000000000002 2.19848 2.80512