I started running a few weeks back and I want to know if I'm improving speed-, distance- and duration-wise.(adsbygoogle = window.adsbygoogle || []).push({});

I have a set of data like these (this is bogus data), currently in Excel:

- 15
- 13
- 16
- 17
- 15
- 15
- 14
- 17
- 17

and I want to know if these numbers get larger with time. How would I do that. I calculated the slope with ongoing number on the x-axis and the changing value on the y-axis. If this is a correct way, what does that number actually tell me regarding the grade of improvement? Is there a much better way to do so?

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# Displaying change via 'slope'?

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