| | Stage 1 | | Stage 2 | | Stage 3 | | Total | | ||||
Gross carrying amount as of December 31, 2016 | | | 5,019,368 | | | 935,999 | | | 65,364 | | | 6,020,731 | |
Transfer in book value to stage 2 | | | (41,167) | | | 41,167 | | | - | | | - | |
Transfer to lifetime expected credit losses - credit-impaired | | | - | | | (46,673) | | | 46,673 | | | - | |
Transfer in book value to stage 1 | | | 8,000 | | | (8,000) | | | - | | | - | |
Financial assets that have been derecognised during the year | | | (4,214,697) | | | (313,394) | | | (21,667) | | | (4,549,758) | |
Changes due to financial instruments recognized as of December 31, 2016 | | | (4,247,864) | | | (326,900) | | | 25,006 | | | (4,549,758) | |
New financial assets originated or purchased | | | 4,067,723 | | | - | | | - | | | 4,067,723 | |
Write-offs | | | - | | | (1,427) | | | (31,611) | | | (33,038) | |
Gross carrying amount as of December 31, 2017 | | | 4,839,227 | | | 607,672 | | | 58,759 | | | 5,505,658 | |
| | Stage 1 | | Stage 2 | | Stage 3 | | Total | | ||||
Gross carrying amount as of December 31, 2015 | | | 6,282,752 | | | 356,668 | | | 52,329 | | | 6,691,749 | |
Transfer in book value to stage 2 | | | (828,589) | | | 828,589 | | | - | | | - | |
Transfer to lifetime expected credit losses not credit-impaired | | | (12,000) | | | (45,056) | | | 57,056 | | | - | |
Transfer in book value to stage 1 | | | 90,770 | | | (90,770) | | | - | | | - | |
Financial assets that have been derecognized during the year | | | (4,577,890) | | | (113,432) | | | (25,214) | | | (4,716,536) | |
Changes due to financial instruments recognized as of December 31, 2015 | | | (5,327,709) | | | 579,331 | | | 31,842 | | | (4,716,536) | |
New financial assets originated or purchased | | | 4,064,325 | | | - | | | - | | | 4,064,325 | |
Write-offs | | | - | | | - | | | (18,807) | | | (18,807) | |
Gross carrying amount as of December 31, 2016 | | | 5,019,368 | | | 935,999 | | | 65,364 | | | 6,020,731 | |