horizontal X-axis runs [...] vertical Y-axis runs [...] along the time axis

horizontal X-axis runs [...] vertical Y-axis runs

horizontal X-axis runs [...] vertical Y-axis runs

horizontal X-axis runs [...] vertical Y-axis runs

horizontal X-axis runs [...] vertical Y-axis runs

horizontal X-axis runs [...] vertical Y-axis runs

horizontal X-axis runs [...] vertical Y-axis runs

horizontal X-axis runs [...] vertical Y-axis runs

horizontal X-axis runs [...] vertical Y-axis runs

horizontal X-axis runs [...] vertical Y-axis runs