Interested in the idea, I hacked this up using the lovely Raphaƫl library that generates SVG.
The code is on GitHub as slopegraph
Kevin Marks, July 13th 2011
country | 1970 | 1979 |
Sweden | 46.9 | 57.4 |
Netherlands | 44.0 | 55.8 |
Norway | 43.5 | 52.2 |
Britain | 40.7 | 39.0 |
France | 39.0 | 43.4 |
Germany | 37.5 | 42.9 |
Belgium | 35.2 | 43.2 |
Canada | 35.2 | 35.8 |
Finland | 34.9 | 38.2 |
Italy | 30.4 | 35.7 |
United States | 30.3 | 32.5 |
Greece | 26.8 | 30.6 |
Switzerland | 26.5 | 33.2 |
Spain | 22.5 | 27.1 |
Japan | 20.7 | 26.6 |