in 2019 within the scope of health tourism, with around 60% of the income being obtained from plastic surgeries. Largest companies Koç Holding, Sabancı Holding, Anadolu Group, Eczacıbaşı Holding and Zorlu Holding are among the country's largest industrial conglomerates, with business operations in a multitude of different sectors. In 2014, 12 Turkish companies were listed in the Forbes Global 2000 list - an annual ranking of the top 2000 public companies in the world by Forbes magazine. Banking industry leads with 5 companies in the list followed by telecommunication industry which has 2 companies in the list. There are also 2 conglomerates followed by transportation and beverages industries with 1 companies each. As of 2014, listed companies were: Long term GDP forecasts The following table is an OECD Long Term Projections made in February 2022 for largest 16 economies by GDP using PPP exchange rates from 2030 to 2060. External trade and investment As of 2016, the main trading partners of Turkey are Germany, Russia and the United Kingdom, UAE, Iraq, Italy and China, many being top in both export as well as import. Turkey has taken advantage of a customs union with the European Union, signed in 1995, to increase industrial production for exports, while benefiting from EU-origin foreign investment into the country. In addition to Customs Union, Turkey has free-trade agreements with 22 countries. A very large aspect of Turkey trade revolves around the automotive industry, where its top exports are cars, accounting for $13.2 billion. Other top exports from the country are gold, delivery trucks, vehicle parts and jewelry, which are respectively, $6.96 billion, $5.04 billion, $4.64 billion, and $3.39 billion. These values are calculated using the 1992 revision of the Harmonized System classification. Comparatively, it imports many of the same industries, such as, gold valued at $17.1 billion, refined petroleum at $9.8 billion, cars at $8.78 billion, vehicle parts at $6.34 billion and scrap iron at $5.84 billion. Turkey is also a source of foreign direct investment in central and eastern Europe and the CIS, with more than $1.5 billion invested. 32% has been invested in Russia, primarily in the natural resources and construction sector, and 46% in Turkey's Black Sea neighbours, Bulgaria and Romania. Turkish companies also have sizable FDI stocks in Poland, at about $100 million. The construction and contracting companies, such as Enka, Rönesans Holding and Tekfen, have been significant players in the