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:
| LMS No. | WD No. | Builder | Serial No. | Date built |
| --- | --- | --- | --- | --- |
| 7620.0 | 23.0 | William Beardmore & Co. | 368.0 | 1928.0 |
| 7624.0 | 24.0 | William Beardmore & Co. | 372.0 | 1928.0 |
| 7629.0 | 22.0 | William Beardmore & Co. | 377.0 | 1928.0 |
| 7631.0 | 20.0 | William Beardmore & Co. | 379.0 | 1928.0 |
| 7638.0 | 19.0 | William Beardmore & Co. | 386.0 | 1928.0 |
Question:
Name the total number of wd number for lms number being 7638
Answer:
1.0