On 13 June, the source wrote (citation (pdf)):
The National Accounts (NA) carries out a benchmark revision every five years concerning annual input sources, methods and calculation models in a number of areas [...] On 13 September updated time series will be disseminated for the years 1993-2017 and for the quarters 1993q1-2019q2. Time series for the period before 1993 will be disseminated later.
In response, we have:
Properties are unchanged (see background in Mnemonic 411).
The series reside in the historical catalog:
They include, for example:
See also