missing abscissa

[nbehrnd]

Assuming the chart is updated in regular intervals, reading the plot would be greatly facilitated if there were a time line included.

As illustration, I merged the current plot with the abscissa provided/used by Tiobe index:

Maybe you did not start to record the popularity of the programming languages by 2002, which would justify a different limit to the left hand side. Then maybe you can use a finer scale; e.g. large tics with annotation of the year, and shorter ones of the quarters/months in between without an annotation -- just like the scale on a thermometer.

[madnight]

I added the time line (x-axis values).