condition mean min max 4 h after light 0.01920975 0.0136682 0.0247513 8 h after light 0.0097345 0.0 0.019469 12 h after light 0.0167231 0.0 0.0334462 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0