condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.05711966666666667 0.0 0.171359 12 h after light 0.0600298 0.0 0.125398 4 h after dark 0.115635 0.0 0.209689 8 h after dark 0.140549 0.0 0.421647 12 h after dark 0.1758284 0.0650452 0.301325