SDG #17 is to “Strengthen the means of implementation and revitalize the Global Partnership for Sustainable Development”
Within SDG #17 are 19 targets, of which we here focus on Target 17.12:
Realize timely implementation of duty-free and quota-free market access on a lasting basis for all least developed countries, consistent with World Trade Organization decisions, including by ensuring that preferential rules of origin applicable to imports from least developed countries are transparent and simple, and contribute to facilitating market access
Target 17.12 has one indicator:
Indicator 17.12.1: Weighted average tariffs faced by developing countries, least developed countries and small island developing States
The tariffs faced by low-income countries as of 2017 averaged 10%, about the same as at the adoption of the SDGs in 2015. This contrasts with the world average tariff of 2%.