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2002 Seasonal Adjustment Factors for ISM Manufacturing Indexes

FOR RELEASE: January 18, 2002

Contact:  Kristen Kioa
  ISM, Media Relations
  Tempe, Arizona
  800/888-6276, Ext. 3015

The Institute for Supply Management™ is a not-for-profit association that provides national and international leadership in purchasing and supply management research and education. The association exists to educate, develop, and advance the purchasing and supply management profession. ISM provides members and nonmembers alike with opportunities to expand their professional knowledge and skills. ISM is comprised of 180 affiliates with more than 46,000 members throughout the United States.

(Prepared by G. McKittrick, Economist, U.S. Department of Commerce, 202/482-2343)

  New Orders Production Employment Supplier Deliveries Inventories Prices Export Orders Imports
January 2002 0.941 0.942 0.927 0.967 0.963 0.945 0.975 0.950
February 2002 0.995 0.981 0.982 0.984 1.062 0.999 0.978 0.972
March 2002 1.056 1.073 1.011 0.979 1.032 0.983 1.010 1.029
April 2002 1.111 1.077 1.027 0.996 1.014 1.036 1.022 1.014
May 2002 1.038 1.051 1.068 1.002 0.975 1.031 1.003 1.036
June 2002 1.036 1.009 1.037 0.997 0.996 1.016 1.028 1.007
July 2002 1.002 0.951 1.010 1.020 0.970 0.988 1.005 0.977
August 2002 0.986 0.944 0.993 1.020 1.039 1.025 1.015 1.021
September 2002 1.065 1.070 0.992 1.014 1.010 1.040 1.043 1.023
October 2002 0.973 1.014 0.988 1.017 1.021 1.021 0.938 1.016
November 2002 0.952 0.953 0.993 1.003 0.963 0.951 1.018 0.970
December 2002 0.846 0.935 0.971 1.001 0.953 0.966 0.967 0.985
                 
Weight .30 .25 .20 .15 .10 (Not part of Purchasing Managers' index)

To compute the Purchasing Managers' Index

  1. Calculate the unadjusted diffusion index for New Orders, Production, Employment, Inventories to two decimal places (percent higher or up plus one half of the percent same or unchanged). For Supplier Deliveries, it will be percent slower plus one half of the percent same or unchanged.
  2. Divide each unadjusted diffusion index by its seasonal factor (round to one decimal place).
  3. Multiply each seasonally adjusted diffusion index by its weight and sum. To compute other indexes, follow #1 and #2 above for each indicator.

1998, 1999, 2000 and 2001 PMI

  1998 1999 2000 2001
  Previous Revision Previous Revision Previous Revision Previous Revision
January 53.5 53.7 49.9 50.4 56.2 56.8 41.2 41.7
February 53.0 53.1 51.7 51.9 56.4 56.7 41.9 42.0
March 53.3 53.3 52.9 53.0 55.3 55.3 43.1 43.2
April 52.3 52.4 52.5 52.6 54.7 54.8 43.2 43.2
May 50.8 50.9 54.4 54.6 53.1 53.4 42.1 42.3
June 49.4 49.3 56.7 56.5 52.1 51.8 44.7 44.3
July 49.2 49.3 53.4 53.6 51.7 51.9 43.6 43.9
August 49.2 49.2 54.7 54.7 49.9 49.9 47.9 47.9
September 48.7 48.3 57.1 56.4 49.6 48.8 47.0 46.2
October 48.7 48.5 56.9 56.6 48.3 48.0 39.8 39.5
November 47.7 47.8 57.2 57.4 47.9 48.1 44.5 44.7
December 46.7 46.5 57.6 57.5 44.3 44.2 48.2 48.1


Seasonally Adjusted Indexes 1997, 1998, 1999, and 2000

  New Orders Production Employment Supplier Deliveries
  Previous Current Revision Previous Current Revision Previous Current Revision Previous Current Revision
January 1998 56.7 57.0 54.5 55.2 51.2 51.2 53.1 53.0
February 1998 54.7 55.0 54.4 54.7 51.6 51.8 53.0 52.8
March 1998 55.1 55.2 55.5 55.5 51.5 51.6 53.0 53.0
April 1998 55.8 55.8 53.2 53.3 49.0 49.2 52.4 52.6
May 1998 51.5 51.5 53.0 53.1 49.1 49.2 51.6 51.6
June 1998 50.8 50.6 51.4 51.3 47.3 47.4 51.1 51.0
July 1998 51.5 52.0 51.0 50.9 45.3 45.4 50.3 50.2
August 1998 50.8 50.7 50.7 50.6 46.4 46.5 50.2 50.3
September 1998 49.2 48.5 51.5 50.7 45.8 45.7 50.7 50.8
October 1998 47.9 47.6 52.4 52.0 45.2 45.1 49.8 49.7
November 1998 47.7 47.6 49.8 50.1 45.1 45.0 50.1 50.3
December 1998 49.5 49.7 47.7 47.5 42.0 41.2 48.2 48.2
                 
January 1999 51.6 52.0 53.7 55.0 45.5 45.6 51.2 51.1
February 1999 55.2 55.8 55.6 56.1 45.7 46.0 51.1 50.8
March 1999 56.4 56.7 56.7 56.5 47.9 48.0 52.4 52.5
April 1999 54.6 54.4 57.3 57.4 48.8 49.1 49.5 49.6
May 1999 58.2 58.4 58.4 58.6 50.9 51.1 52.1 52.2
June 1999 60.5 60.1 63.1 62.7 51.6 51.8 53.1 52.8
July 1999 53.8 54.4 58.5 58.3 50.3 50.4 54.3 54.1
August 1999 57.4 57.3 58.5 58.3 52.9 53.0 51.2 51.3
September 1999 63.2 62.0 60.4 59.2 51.4 51.1 55.5 55.7
October 1999 61.1 60.5 59.4 58.7 52.9 52.7 56.1 55.9
November 1999 61.8 61.6 59.1 60.0 52.7 52.6 56.1 56.5
December 1999 60.1 60.5 60.4 60.1 56.2 54.8 56.1 56.1
                 
January 2000 59.9 60.5 55.9 57.5 53.1 53.2 55.4 55.3
February 2000 59.3 60.1 60.4 61.2 53.3 53.8 55.3 54.9
March 2000 56.6 57.0 60.0 59.6 51.7 51.9 54.4 54.6
April 2000 55.9 55.6 57.8 57.8 53.0 53.5 55.4 55.7
May 2000 52.1 52.3 56.0 56.2 52.5 52.7 55.1 55.3
June 2000 51.1 50.4 54.2 53.7 51.0 51.5 55.1 54.7
July 2000 49.8 50.6 53.2 53.0 52.5 52.5 54.3 54.0
August 2000 50.0 50.0 49.9 49.9 48.4 48.4 53.3 53.4
September 2000 48.9 47.8 51.4 49.9 50.4 50.0 49.0 49.3
October 2000 48.2 47.7 48.9 48.3 47.8 47.5 51.1 50.8
November 2000 48.3 47.9 50.1 51.1 46.2 46.2 49.3 49.7
December 2000 42.5 42.9 43.5 43.3 44.1 42.8 52.1 52.1
                 
January 2001 37.8 38.2 37.9 39.2 43.0 43.1 50.3 50.2
February 2001 40.8 41.3 39.7 40.3 37.2 37.6 51.3 50.8
March 2001 42.3 42.7 42.8 42.5 40.4 40.6 48.3 48.5
April 2001 45.9 45.5 42.9 42.8 38.1 38.5 47.4 47.7
May 2001 45.5 45.7 42.7 42.9 35.0 35.2 45.7 45.9
June 2001 48.6 47.9 46.2 45.6 36.3 36.6 48.0 47.6
July 2001 46.3 47.3 46.4 46.2 37.2 37.1 47.4 47.1
August 2001 53.1 53.1 52.2 52.3 40.8 40.8 46.5 46.6
September 2001 50.3 49.0 51.3 49.7 41.2 40.8 46.5 46.8
October 2001 38.3 38.0 40.9 40.4 35.1 34.9 49.2 48.7
November 2001 48.8 48.4 47.1 48.2 35.7 35.7 47.3 47.8
December 2001 54.9 55.5 50.6 50.3 40.5 39.2 48.0 48.0


Continued…



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