(+) numbers mean purchases of USD, (-) numbers mean sales of USD. Unpublished data.
Since 2002, the foreign exchange interventions have started to be published through press releases at the same day when the intervention was made. The amount that was bought/sold at an intervention is published on the first working day of the month which comes after 3 months following the intervention date.
Central Bank of the Republic of Turkey, Turkish Intervention: Central Bank of Turkey Purchases of USD (Millions of USD) [TRINTDEXR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/TRINTDEXR/, September 3, 2015.