Why does increase() return a value of 1.33 in prometheus? : <p>We graph a timeseries with <code>sum(increase(foo_requests_total[1m]))</code> to show the number of foo requests per minute. Requests come in quite sporadically - just a couple of requests per day. The value that is shown in the graph is always 1.3333. Why is the value not 1? There was one request during this minute.</p>

<p><a href="https://i.stack.imgur.com/eGgIh.png" rel="noreferrer"><img src="https://i.stack.imgur.com/eGgIh.png" alt="enter image description here"></a></p>
