The trade openness index — the sum of imports and exports as a percentage of GDP — measures San Marino's degree of integration in the international economy. Values above 300% of GDP indicate an economy heavily oriented toward external trade.
| Year | Value (% PIL) | YoY change | vs 2010 |
|---|---|---|---|
| 2023 | 344.7 | -1.8% | +11.0% |
| 2022 | 351 | +4.3% | +13.0% |
| 2021 | 336.4 | +16.6% | +8.3% |
| 2020 | 288.5 | -13.0% | -7.1% |
| 2019 | 331.5 | -0.9% | +6.7% |
| 2018 | 334.6 | +1.8% | +7.7% |
| 2017 | 328.7 | +2.8% | +5.8% |
| 2016 | 319.9 | -0.9% | +3.0% |
| 2015 | 322.7 | +4.8% | +3.9% |
| 2014 | 307.8 | +2.4% | -0.9% |
| 2013 | 300.7 | -0.9% | -3.2% |
| 2012 | 303.4 | -4.7% | -2.3% |
| 2011 | 318.2 | +2.4% | +2.4% |
| 2010 | 310.6 | — | base |
Calculated as (Exports + Imports) / GDP × 100. Values around 300–350% place San Marino among the world's most open economies, comparable to Hong Kong and Singapore.
OESM — Economic Observatory of San Marino. (2026). Trade openness (% of GDP) — San Marino, 2010–2023 [Dataset]. Retrieved 12 March 2026 from https://oesm.net/en/data/san-marino-trade-openness
OESM — Economic Observatory of San Marino. "Trade openness (% of GDP) — San Marino." Dataset. Accessed 12 March 2026. https://oesm.net/en/data/san-marino-trade-openness.
@dataset{oesm2026_trade_openness_en,
author = {OESM -- Economic Observatory of San Marino},
title = {Trade openness (% of GDP) -- San Marino, 2010--2023},
year = {2026},
url = {https://oesm.net/en/data/san-marino-trade-openness},
note = {Accessed: 12 March 2026},
license = {CC BY 4.0},
}