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:
| Date | Visitor | Score | Home | Decision | Attendance | Series |
| --- | --- | --- | --- | --- | --- | --- |
| April 24 | Philadelphia | 3 – 4 | Montreal | Biron | 21273.0 | Canadiens lead 1–0 |
| April 26 | Philadelphia | 4 – 2 | Montreal | Biron | 21273.0 | Series tied 1–1 |
| April 28 | Montreal | 2 – 3 | Philadelphia | Biron | 19849.0 | Flyers lead 2–1 |
| April 30 | Montreal | 2 – 4 | Philadelphia | Biron | 19872.0 | Flyers lead 3–1 |
| May 3 | Philadelphia | 6 – 4 | Montreal | Biron | 21273.0 | Flyers win 4–1 |
Question:
On April 28, what was the average number of people attending?
Answer:
19849.0