The changes are:

• Geo composite "Emerging Asia" has been redefined to exclude China.
• New geo composite, "Advanced economies".
• New geo composite, "Emerging economies".

In response, we have:

1. Discontinued series (2000m1 to 2019m5) for "Emerging Asia incl. China" (geo code IASIA).
2. Created one-for-one replacements for "Emerging Asia excl. China" (new geo code IASIAXCHN).
3. Created new series for China (ICHN).
4. Created new series for "Advanced economies" (IADVC), composition: U.S., Japan, Euro Area, Other.
5. Created new series for "Emerging economies" (IEMRG), composition: China, Emerging Asia excl. China, Eastern Europe/CIS, Latin America, Africa, Middle East.

Subset properties:

• Measurements: Fixed-base volume index relative to 2010 (Vol. Index 2010=100) or value index (Index 2010=100)
• Adjustment: Working day adjusted and seasonally adjusted (WDASA)
• Native frequency: Monthly
• Start date: 2000m1

The series reside in the historical catalog (Cross-Country Datasets » World Trade » World Trade Monitor (CPB)) and include, for example:

• CPBTRJIMCM.IASIA     = [DISCONTINUED] Trade: Imports, (Vol. Index 2010=100, WDASA) - for Emerging Asia incl. China
• CPBTRJIMCM.IASIAXCHN = Imports, (Vol. Index 2010=100, WDASA) - for Emerging Asia excl. China
• CPBTRIIMCM.ICHN      = Imports, (Index 2010=100, WDASA) - for China
• CPBTRJIMCM.IADVC     = Trade: Imports, (Vol. Index 2010=100, WDASA) - for Advanced economies
• CPBTRIEXCM.IEMRG     = Trade: Exports, (Index 2010=100, WDASA) - for Emerging economies

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.