Press Office

RWI/ISL Container Throughput Index has decreased slightly in April

Press release from 24 May 2012

In April, the RWI/ISL Container Throughput Index has decreased slightly to 113.4 from (revised) 114.0 in February. This was the first decline of the indicator since November 2011, indicating that world merchandise trade has lost momentum. The flash forecast for April is based upon data of 36 ports which represent about 70% of the total volume covered by the Index. The March data released one month ago were revised marginally only.

The Index is based on data for 72 international ports covering more than 60% of world container handling. These ports are continuously monitored by the Institute of Shipping Economics and Logistics (ISL) as part of their market analysis. Because large parts of international merchandise trade are transported by ship, the development of port handling is a good indicator for world trade. As many ports release information about their activities only two weeks after the end of the respective month, the RWI/ISL Container Throughput Index is a reliable early indicator for the development of international merchandise trade and hence for the activity of the global economy.

For further information, please contact:
Prof. Dr. Roland Döhrn (RWI), Tel.: +49 201 81 49-262,
Sönke Maatsch (ISL), Tel.: +49 421 220 96-32,
Sabine Weiler (Press Office RWI), Tel.: +49 0201 81 49-213,

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Further information about the RWI/ISL Container Throughput Index is available at