Some .22 cal boxes


One man presented me some RWS .22 cal. boxes of different periods. Here the picture with them.

Is it possible to identify the year when those boxes/cartridges was made?
On sides of the boxes there are mentioned the manufacturers:
Boxes # 1-3 - Dinamit Nobel, Troisdorf, Germany
Box #4 - Dinamit Nobel, Fürth, Germany
Box #5 - RUAG Ammotec GmbH, Fürth, Germany

When Dinamit Nobel moved from Troisdorf to Fürth? Did manufacturing facilities also was shifted to Fürth?