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 | Start | Qual | Rank | Finish | Laps |
| --- | --- | --- | --- | --- | --- |
| 1913 | 7 | 86.030 | 3 | 1 | 200.0 |
| 1914 | 19 | 98.130 | 2 | 4 | 200.0 |
| 1919 | 22 | 95.000 | 15 | 3 | 200.0 |
| 1920 | 21 | 84.300 | 19 | 15 | 148.0 |
| 1922 | 22 | 96.950 | 9 | 25 | 25.0 |
| Totals | Totals | Totals | Totals | Totals | 773.0 |
Question:
What's the lowest amount of laps with a start of 21?
Answer:
148.0