Table 6 Diffusion Indexes of Industrial Production Percent ------------------------------------------------------------------------------------------------------- Year Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. ------------------------------------------------------------------------------------------------------- One Month Earlier 2004 61.0 62.7 53.0 66.7 58.7 46.3 66.0 56.0 47.0 61.0 53.7 58.7 2005 54.7 47.3 49.7 52.7 54.0 56.7 54.3 52.0 55.3 60.0 59.3 55.8 2006 65.5 50.0 60.5 Three Months Earlier 2004 66.0 61.3 65.0 68.3 66.7 62.3 57.7 56.3 56.3 57.7 56.7 64.3 2005 58.3 59.0 52.0 47.3 51.8 57.0 57.0 55.0 54.3 57.7 58.5 60.7 2006 67.0 62.3 66.5 Six Months Earlier 2004 68.3 73.3 68.0 77.0 72.0 65.3 67.3 67.0 62.0 61.3 58.7 64.0 2005 62.0 60.0 60.7 52.3 52.7 55.0 57.0 53.3 56.3 60.0 60.0 56.0 2006 64.0 62.3 66.3 ------------------------------------------------------------------------------------------------------- Note: The diffusion indexes are calculated as the percentage of series that increased over the indicated span (one, three, or six months) plus one-half the percentage that were unchanged.