The specific figure of 85% is not directly cited in primary UNCTAD sources; the authoritative figure is 'around 80%' for trade by volume.
The percentage varies depending on whether measuring by volume (tonnage) or by value. By value, the maritime share is lower (approximately 70%).
UNCTAD's Review of Maritime Transport 2024 was published in October 2024, and Review of Maritime Transport 2025 was published in late 2025, both before the session date of April 2026.
PrimaryUNCTAD Review of Maritime Transport 2024Global maritime trade data and statistics; confirms maritime transport carries the vast majority of global trade volume