Open trading account 
Here is my new artcles.
http://www.dukascopy.com/fxcomm/fx-article-contest/?Manual-Of-Markernoteslites&action=read&id=2175
If you use this IIndicator, you can easy make charts as below.
US (red) and EU (green)’s unemployment rate on EUR/USD chart.
US (red) and JPN (green)’s monetary base rate on USD/JPY chart. (Jan. 2006 = 1.0) .
Of course, you don't need use a economic database. You can use a more fun data which is something like your weight chart
http://www.dukascopy.com/fxcomm/fx-article-contest/?Manual-Of-Markernoteslites&action=read&id=2175
If you use this IIndicator, you can easy make charts as below.
US (red) and EU (green)’s unemployment rate on EUR/USD chart.
US (red) and JPN (green)’s monetary base rate on USD/JPY chart. (Jan. 2006 = 1.0) .Of course, you don't need use a economic database. You can use a more fun data which is something like your weight chart