The source wrote (citation):

In accordance with European directives, the index of sales volume in overall trade and the associated turnover indicators use 2015 as base year from this publication.

In response, we have archived the predecessors (base year 2010, January 1995 to December 2017) by renaming with an "_10" specifier, by marking metadata as "discontinued", and by segregating in the catalog. The one-for-one replacements (base year 2015) start at January 2005. There are four presentations: value or volume indexes, and working day and seasonally adjusted (WDASA) or not seasonally adjusted (NSA). The classification is NAF Rev. 2, the adaptation of NACE Rev. 2.

The series reside in the historical catalog (France » Consumer » Retail sales index) and include, for example:

• WRI47_10CM.IFRA    = [DISCONTINUED] Retail sales index: Retail trade except of motor vehicles and motorcycles [47], (Index 2010=100, WDASA)
• WRI47CM.IFRA       = Retail trade except of motor vehicles and motorcycles [47], (Index 2015=100, WDASA)
• WRI4719A_10UM.IFRA = [DISCONTINUED] Department stores [47.19A], (Index 2010=100, NSA)
• WRI4719AUM.IFRA    = Department stores [47.19A], (Index 2015=100, NSA)
• WRI4751UM.IFRA     = Of textiles in specialised stores [47.51], (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

• Press release for January 2018
• Definitions - Retail trade
• Sources and methods - Sales volume index in trade
• French classification of activities NAF rev. 2

See also

• Understanding Data: How do value and volume of retail sales differ?
• Other retail sales indexes
• Other recent rebase operations for France
• Data Change: France - Wholesale, RSI (value index) - Rebased to 2015 (Apr 2018)