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:
| Rank | Gold | Silver | Bronze | Total |
| --- | --- | --- | --- | --- |
| 1 | 186.0 | 173.0 | 135.0 | 494.0 |
| 2 | 45.0 | 12.0 | 15.0 | 72.0 |
| 3 | 40.0 | 20.0 | 12.0 | 72.0 |
| 4 | 32.0 | 51.0 | 63.0 | 146.0 |
| 5 | 30.0 | 41.0 | 63.0 | 134.0 |
| 6 | 24.0 | 20.0 | 6.0 | 50.0 |
| 7 | 18.0 | 49.0 | 50.0 | 117.0 |
| 8 | 12.0 | 14.0 | 52.0 | 78.0 |
| 9 | 9.0 | 5.0 | 8.0 | 22.0 |
| 10 | 5.0 | 7.0 | 7.0 | 19.0 |
| 11 | 4.0 | 8.0 | 13.0 | 25.0 |
| 12 | 4.0 | 2.0 | 4.0 | 10.0 |
| 13 | 4.0 | 2.0 | 2.0 | 8.0 |
| 14 | 4.0 | 2.0 | 1.0 | 7.0 |
| 15 | 3.0 | 2.0 | 3.0 | 8.0 |
| 16 | 3.0 | 1.0 | 0.0 | 4.0 |
| 17 | 2.0 | 4.0 | 5.0 | 11.0 |
| 18 | 2.0 | 3.0 | 9.0 | 14.0 |
| 19 | 2.0 | 3.0 | 3.0 | 8.0 |
| 20 | 2.0 | 1.0 | 0.0 | 3.0 |
| 21 | 1.0 | 2.0 | 1.0 | 4.0 |
| 22 | 1.0 | 1.0 | 2.0 | 4.0 |
| 23 | 1.0 | 0.0 | 2.0 | 3.0 |
| 24 | 0.0 | 2.0 | 3.0 | 5.0 |
| 25 | 0.0 | 1.0 | 5.0 | 6.0 |
| Totals | 438.0 | 428.0 | 469.0 | 1335.0 |
Question:
What is the total amount of gold medals when there were more than 20 silvers and there were 135 bronze medals?
Answer:
1.0