9a. Percent of construction establishments involved in green technologies and practices, 2011
9b. LEED-certified projects, (Excluding residential)
9c. Owners of LEED-registered projects, (Excluding residential)
9d. LEED-certified square feet, by region, (Excluding residential)
9e. LEED-certified square feet per capita, by state, 2011 (Excluding residential)
9f. Market value of new single-family residential construction, green vs. non-green, (projection) (p)