In 2019, the source wrote (citation) (pdf, machine translation):

Encuestas Económicas Nacionales. Metodología de la construcción de la serie 2013

The National Institute of Statistics and Geography (INEGI), in the framework of the Cycle of Update of the Economic Information, carries out the Change of Base Year to 2013 of the National Economic Surveys. In this context, the document entitled “National Economic Surveys is presented. Methodology of the construction of the 2013 Series”, which describes the main aspects applied by the surveys of Construction Companies, Manufacturing Industries, Commerce, Services and Business Opinion, in the process of generating the extensive statistical series.

In response, we have:

1. Archived the predecessor (prior methodology, 2004m1 to 2019m3) by marking its metadata and catalog entries as discontinued.
2. Refurbished its description metadata from "production" to "manufacturing sector".
3. Created its replacement.
4. Transplanted the global concept alias CIB.IMEX.

Notable properties:

• Measurement: Unchanged, viz., diffusion index with a central value of 50
• Start date: No change

The series reside in the historical catalog:

• Mexico » Cyclical Indicators » Business confidence (INEGI)

and are:

• CIIBSBCFUM.IMEX  = [DISCONTINUED] Business confidence: Manufacturing sector, (Dif. Index=50, NSA)
• CIICNFMFTUM.IMEX = Business confidence: Manufacturing sector, (Dif. Index=50, NSA)

Updates

• 12 Nov 2019 - Initial version.
• 3 Mar 2020 - Changed from "data revision" to "data change".