The source wrote:

Turnover from motor vehicle trade in April 2018 increased by 9.9% price adjusted on April 2017
...
Every five years, the figures for retail turnover are subject to a regular adaption. The results now refer to the new base year of 2015.

In response, we have:

1. Archived the predecessors (2010=100, January 1994 to January 2018) by renaming with an "_10" specifier, by marking metadata as "discontinued", and by segregating in the catalog.
2. Created one-for-one replacements (2015=100).

Dataset properties:

• The classification is WZ08 (the national adaptation of NACE Rev. 2); scope is division 45.
• Figures are fixed-base value indexes (Index) or volume indexes (Vol. Index).
• The start date is January 1994 (unchanged).

The series reside in the historical catalog (Germany » Consumer » Retail sales index) and are:

• WRJ45_10UM.IDEU = [DISCONTINUED] Wholesale and retail trade and repair of motor vehicles and motorcycles, (Vol. Index 2010=100, NSA)
• WRI45_10UM.IDEU = [DISCONTINUED] (Index 2010=100, NSA)
• WRJ45UM.IDEU    = (Vol. Index 2015=100, NSA)
• WRI45UM.IDEU    = (Index 2015=100, NSA)

Because catalog locations are subject to change, the upper-right search box on DataBuffet.com provides a "find in catalog" mode that accepts a mnemonic.

References

• Economic sectors » Domestic trade, accommodation and food service activities
• Press releases » Domestic trade, accommodation and food service activities
• Economic sectors » Turnover from motor vehicle trade in April 2018 (no timestamp)

See also

• Data Change: Germany - RSI - Rebased to 2015 (16 Apr)