For the five years between 2002 and 2007 (click here for data; opens a PDF), overall trade book sales averaged an annual increase of 2.5 percent. (noshelfrequired.com)
Between 1993 and 2003 spending in these and other poor districts doubled, with average annual increases between 6.5 and 9.4 percent. (educationnext.org)
But that single - year growth paled in comparison with the 4.4 percent average annual increase in global coal consumption recorded in the last decade as the United States cut its coal consumption by nearly 12 percent, according to the report. (scientificamerican.com)