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:
| State | Status | Association Agreement | Membership Application | Candidate status | Negotiations start | Screening completed | Acquis Chapters open/closed |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Albania | Applicant | 2009-04-01 ( SAA ) | 2009-04-28 | – | – | – | – |
| Bosnia and Herzegovina | Potential candidate | Signed (SAA) | – | – | – | – | – |
| Iceland | Negotiations Suspended | 1994-01-01 ( EEA ) | 2009-07-16 | 2010-06-17 | 2010-07-27 | 2011-06-21 | 27/11 of 33 |
| Kosovo | Potential candidate | Negotiating (SAA) | – | – | – | – | – |
| Macedonia | Candidate | 2004-04-01 (SAA) | 2004-03-22 | 2005-12-17 | – | – | – |
| Montenegro | Negotiating | 2010-05-01 (SAA) | 2008-12-15 | 2010-12-17 | 2012-06-29 | 2013-06-27 | 2/2 of 33 |
| Serbia | Candidate | 2013-09-01 (SAA) | 2009-12-22 | 2012-03-01 | (Jan 2014 at the latest) | (Started) | – |
| Turkey | Negotiating | 1964-12-01 ( AA ) | 1987-04-14 | 1999-12-12 | 2005-10-03 | 2006-10-13 | 14/1 of 33 |
Question:
What is the acquis chapter open/closed dates with a membership application in 2009-04-28?
Answer:
–