request for line graph with both patents and publications

[peterbenmeyer]

I'd like to be able to show a line graph with count data of different types.
Most importantly, a simple one with publications-per-year and patents-per-year. Maybe clubs too, at some point.
On this chart I'm not looking to distinguish languages or countries.

[Protonk]

Added in 1b190e7

It isn't general enough do do any type, but that isn't hard to add.

[peterbenmeyer]

I see separate PNGs for Patents and for Articles but I ask for those as two lines on one graph so people see the degree to which they are similar.

[Protonk]

now added to a combined chart.