For which graph? The top one is simply noting down the figures from my mileometer, and keeping a rough mental tally of how many times a week I cycled. Then I managed to snap the mileometer off my bike in 2005, so—being the person I am—I wrote a CGI script to do the same, and enter into a webform every day when I get to work whether I cycled there, and how many extra miles I did; and it presents me with the above graph and a mileage breakdown.
Now, the question you should have been asking is: how come your annual mileage stayed the same during the period 1996–2000 despite your weekly number of commutes falling? ;^b
(The answer, in case you're now wondering, is because at the beginning, whenever I had a puncture and the repair failed, it would often take me months to get around to repairing it. During the course of that period, I cycled less, but got better at repairing faults.)
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Date: 2008-07-10 06:33 pm (UTC)Now, the question you should have been asking is: how come your annual mileage stayed the same during the period 1996–2000 despite your weekly number of commutes falling? ;^b
(The answer, in case you're now wondering, is because at the beginning, whenever I had a puncture and the repair failed, it would often take me months to get around to repairing it. During the course of that period, I cycled less, but got better at repairing faults.)