From U.S. News on March 3, 2010:
"According to data provided by the U.S. International Trade Commission, Chinese imports of U.S. cast-offs (scrap metal, waste paper, and the like) surged by an eye-popping 916 percent over the 2000-2008 period, with most of that expansion occurring after 2004."
But, the Bloomberg infographic showed that trash carloads had the highest correlation to GDP growth:
"from early 2001 through the first quarter of this year, the growth rate of carloads of waste has shown a statistical correlation of 82.4 percent with the year-on-year change in gross domestic product, according to Bloomberg calculation."
|Source: TwitPic, BloombergBriefs.com|
Related: Waste and Scrap Carloads Correlate With Economic Growth (GDP), Weekly Chart Update (Feb 2011)