English: Exchange rate data were found here: http://www.oanda.com/lang/de/currency/historical-rates/. They were normalized with respect to their Jan. 1999 value and divided by the weighted mean of all. The weights are the GNP in relation to their GNP sum. GNP data from 2007 from CIA factbook (http://www.umsl.edu/services/govdocs/wofact2008/rankorder/2001rank.html). Calculation to be found here: http://www.box.net/shared/gry1nkry20tpodcfb9yt.

Remark: From 1994 until 2006, the exchange rate between US-Dollar and Renminbi had been kept practically constant by the Chinese Government. Therefore the Renminbi - line covers the Dollar - line in the plot nearly exactly in the left part of the plot.