plot
    skyblue line
  with
    page   0 0 200 20 
    frame  0 0 100 20
    no sides
    no xaxis
    no yaxis
select price from price_earnings;

plot
    swath, very light gray swath, skyblue line
  with
    page   0 0 200 20  
    frame  0 0 100 20
    no sides
    no xaxis
    no yaxis
select 800, 1250, price from price_earnings;

plot
    swath, very light gray swath, skyblue line, small red filled circle
  with
    page   0 0 200 20  -- note the page must be wider!
    frame  0 0 100 20
    no sides
    no xaxis
    no yaxis
select 800, 1250, price, if(`Date` = '2008.08', price, null)
  from price_earnings;

plot
    swath, very light gray swath, skyblue line, datalabels right
  with
    page   0 0 200 20  -- note the page must be wider!
    frame  0 0 100 20
    no sides
    no xaxis
    no yaxis
    foreground dark orange
select 800, 1250, price, if(`Date` = '2008.08', price, null)
  from price_earnings;