Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year of census | total | Croats | Serbs | Others |
| --- | --- | --- | --- | --- |
| 2001.0 | 31670.0 | 18,199 (57.46%) | 10,412 (32.88%) | 3,059 (9.66%) |
| 1991.0 | 84024.0 | 36,910 (43.93%) | 31,910 (37.98%) | 15,204 (18.09%) |
| 1981.0 | 81203.0 | 30,157 (37.14%) | 25,146 (30.97%) | 25,903 (31.89%) |
| 1971.0 | 76602.0 | 34,629 (45.21%) | 28,470 (37.17%) | 13,593 (17.09%) |
| 1961.0 | 54707.0 | 24,527 (44.83%) | 22,774 (41.63%) | 7,406 (13.54%) |
Question:
What is the average total of the census after 1971 with 10,412 (32.88%) Serbs?
Answer:
31670.0