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How much of Slovenia’s trade passes through the Turkish Straits?

In 2024, an estimated $3.7 billion of Slovenia’s trade passed through the Turkish Straits, 6.7% of its seaborne trade. That is $1.8 billion of exports and $2 billion of imports. The partners with the most trade through it are Turkey, Romania and Bulgaria.

Summary

Estimated value
$3.7billion
Of its seaborne trade
6.7%
Exports
$1.8billion
Imports
$2billion

Trend

Estimated value per year

Slovenia’s estimated trade through the Turkish Straits rose 7% between 2019 and 2024

Value in USD billions

  • Slovenia 3.7

Source: CEPII BACI

Show the numbers
YearEstimated valueOf its seaborne trade
1995$323 million3.3%
1996$295 million2.9%
1997$336 million3.3%
1998$398 million3.4%
1999$382 million3.3%
2000$440 million3.7%
2001$515 million4.2%
2002$600 million4.5%
2003$739 million4.7%
2004$1 billion5.7%
2005$1.2 billion5.5%
2006$1.5 billion6.1%
2007$2.4 billion7.6%
2008$2.3 billion6.8%
2009$1.6 billion6%
2010$1.7 billion5.8%
2011$2.1 billion6.3%
2012$1.9 billion6.2%
2013$2.1 billion6.5%
2014$2.3 billion6.9%
2015$2 billion6.4%
2016$2.1 billion6.3%
2017$2.5 billion6.7%
2018$2.9 billion6.9%
2019$3.5 billion8.4%
2020$2.9 billion7.7%
2021$3.4 billion7.2%
2022$4.3 billion7.9%
2023$3.7 billion7%
2024$3.7 billion6.7%

Partners whose trade crosses it

Estimated value of its trade with each partner that crosses the chokepoint; the percentage is the share of all its trade through the chokepoint, not of the pair’s trade.

  1. Slovenia–Turkey$1.4 billion · 37.6%
  2. Slovenia–Romania$1.4 billion · 36.8%
  3. Slovenia–Bulgaria$364 million · 9.8%
  4. Slovenia–Ukraine$225 million · 6%
  5. Slovenia–Russia$134 million · 3.6%
  6. Slovenia–Kazakhstan$122 million · 3.3%
  7. Slovenia–Uzbekistan$39 million · 1%
  8. Slovenia–Moldova$20 million · 0.53%
  9. Slovenia–Armenia$17 million · 0.46%
  10. Slovenia–Georgia$14 million · 0.39%

What crosses it

The products with the highest estimated value in 2024, with their share of the total through the chokepoint.

  1. Cars$359 million · 9.7%
  2. Refined petroleum$255 million · 6.9%
  3. Auto parts$143 million · 3.9%
  4. Trucks$109 million · 2.9%
  5. Spark-ignition engines$95 million · 2.6%
  6. Unwrought aluminum$92 million · 2.5%
  7. Electric heaters and hair dryers$74 million · 2%
  8. Cables and wire$61 million · 1.7%
  9. Batteries$55 million · 1.5%
  10. New tires$55 million · 1.5%

Reference ports

Koper (100%)

Each port with the weight it receives from the country’s trade, based on where its GDP is generated and which coast is closest.

Other chokepoints it uses

Sources and method

Sources and licenses

Methodology

We estimate the value crossing each chokepoint from BACI trade that travels by sea according to our mode heuristic, split between each country’s ports by where its GDP is generated and which coast is closest, and routed over our own sea network. It is an estimate, not a count of ships. It covers 99.9% of seaborne trade. The approach follows Verschuur, Lumma and Hall (Nature Communications, 2025). Data up to 2024.

The Bosporus and the Dardanelles are counted together: they are the two gates between the Black Sea and the Mediterranean.

All maritime chokepoints