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:
| Class | Railway number(s) | Quantity | Year(s) of manufacture | Axle arrangement ( UIC ) |
| --- | --- | --- | --- | --- |
| None | 70–73 ( de ) | 4.0 | 1868 | B n2t |
| P 2 II | 88 (II) …95 (II) , 260–262, 264–284 | 31.0 | 1900–1902 | 1′B2′ n2t |
| P 5 | 310–321 | 12.0 | 1908 | 1′C2′ n2t |
| T 1 ( de ) | 15 (II) …73 (II) , 177–186 | 31.0 | 1892–1897 | B n2t |
| T 2 I ( de ) | I–VIII | 8.0 | 1865–1874 | B n2t |
| T 2 II ( de ) | VII (II) –X | 4.0 | 1883–1884 | B n2t |
| T 3 ( de ) | 13 (II) …71 (II) , 202–208, 246–256 | 27.0 | 1889–1905 | C n2t |
| T 4 I | 44 (II) …56 (II) , 194–197 | 7.0 | 1895–1897 | C1′ n2t |
| T 4 I | 322–325 | 4.0 | 1908 | C1′ n2t |
| T 4 II | 257–259 | 3.0 | 1900 | C1′ n2t |
| T 5 | 306–309 | 4.0 | 1907 | E n2t |
| D VIII | 326–329 | 4.0 | 1909–1910 | C1′ n2t |
| Pt 3/6 | 330–338 | 9.0 | 1911–1913 | 1′C2′ h2t |
| Pt 3/6 | 401–410 | 10.0 | 1923 | 1′C2′ h2t |
| R 4/4 | 123 (II) …159 (II) | 9.0 | 1913–1915 | D n2t |
Question:
What year was the b n2t axle arrangement, which has a quantity of 31, manufactured?
Answer:
1892–1897