You aree given the data concerning the international economiic transactions of country

suppose that there are no errors and omissions

export of goods : 20.000$

balance on goods and services (deficit) : 15.000$

exports of services : 8000$

imports of services : 3500$

investment income reveived from abroad : 4500$

primary income balance (surplus) : 2500$

secondary income balance (deficit) : 2000$

increase in foreign owned long term domestic assets : 7500$

increase in domestically owned short term private assets abroad : 12500$

increase in domestically owned long term official assets abroad : 4500 $

foreign central banks acquisition of domestic assets : 7500 $

domestic central banks acquisition of international assets : 2500$

what is the value of changes in reserves