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:
| !Aces | Player | Opponent | Round | Year | Event | Surface | Sets |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1.0 | 113.0 | W | Nicolas Mahut | 1R | 2010.0 | Wimbledon | Grass |
| 2.0 | 103.0 | L | John Isner | 1R | 2010.0 | Wimbledon | Grass |
| 3.0 | 78.0 | L | Radek Štěpánek | SF | 2009.0 | Davis Cup | Clay |
| 4.0 | 55.0 | L | Lleyton Hewitt | 1R | 2009.0 | Roland Garros | Clay |
| 5.0 | 51.0 | L | Andre Agassi | 4R | 2005.0 | Australian Open | Hard |
| 5.0 | 51.0 | L | Daniele Bracciali | 1R | 2005.0 | Wimbledon | Grass |
| 7.0 | 50.0 | W | Andy Roddick | F | 2009.0 | Wimbledon | Grass |
| 8.0 | 49.0 | L | Yevgeny Kafelnikov | QF | 1999.0 | US Open | Hard |
| 9.0 | 48.0 | L | Arnaud Clément | QF | 2001.0 | Davis Cup | Carpet |
| 9.0 | 48.0 | L | Ivan Dodig | 1R | 2011.0 | Australian Open | Hard |
| 9.0 | 48.0 | W | Olivier Rochus | 1R | 2012.0 | Wimbledon | Grass |
Question:
How many players were in the event after 2011 with less than 9 aces?
Answer:
0.0