Container handling volumes are growing at their slowest rates since 2009, based on throughput data at the 25 largest ports, collected by the information service Alphaliner . In its most recent newsletter, Alphaliner said weak demand in Europe and the United States resulted in volumes growing by 4 percent in 2012 compared to 8.7 percent in 2011 and 15.5 percent in 2010. The company said 11 of the top 25 ports are located in China, seven in other Far East countries...