|  Other significant information |  Early Liquidation of the Fund and Early Amort. of the Bonds  |  02/27/2024 |  | 
|  Other significant information |  Treasury Account and Bond Paying Agent Position Transferred |  07/10/2023 |  | 
|  Other significant information |  Bonds Series revised by DBRS |  05/26/2023 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  02/28/2023 |  | 
|  Other significant information |  Bonds Series revised by DBRS |  05/27/2022 |  | 
|  Other significant information |  Bonds Series revised by DBRS |  04/06/2021 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  08/20/2020 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  06/18/2020 |  | 
|  Other significant information |  Treasury Account and Bond Paying Agent Position Transferred |  06/16/2020 |  | 
|  Other significant information |  Bonds Series revised by DBRS |  05/31/2019 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  12/19/2018 |  | 
|  Other significant information |  Treasury Account and Bond Paying Agent Position Transferred |  07/24/2018 |  | 
|  Other significant information |  Bonds Series revised by DBRS |  06/06/2018 |  | 
|  Ratings updating |  Fitch Ratings |  02/19/2018 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  02/19/2018 |  | 
|  Other significant information |  Bonds Series revised by DBRS |  06/02/2017 |  | 
|  Ratings updating |  DBRS |  06/01/2017 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  05/26/2017 |  | 
|  Ratings updating |  Fitch Ratings |  05/24/2017 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  06/20/2016 |  | 
|  Ratings updating |  Fitch Ratings |  06/17/2016 |  | 
|  Other significant information |  Bonds Series revised by DBRS |  06/06/2016 |  | 
|  Ratings updating |  DBRS |  06/02/2016 |  | 
|  Other significant information |  Bonds Series revised by DBRS |  01/28/2016 |  | 
|  Ratings updating |  DBRS |  01/27/2016 |  | 
|  Other significant information |  Deeds modification |  01/05/2016 |  | 
|  Other significant information |  Treasury Account and Bond Paying Agent Position Transferred |  07/15/2015 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  06/19/2015 |  | 
|  Ratings updating |  Fitch Ratings |  06/18/2015 |  | 
|  Other significant information |  Bonds Series revised by DBRS |  01/28/2015 |  | 
|  Ratings updating |  DBRS |  01/27/2015 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  06/24/2014 |  | 
|  Ratings updating |  Fitch Ratings |  06/23/2014 |  | 
|  Other significant information |  Bonds Series revised by DBRS |  01/29/2014 |  | 
|  Ratings updating |  DBRS |  01/27/2014 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  08/20/2013 |  | 
|  Ratings updating |  Fitch Ratings |  08/19/2013 |  | 
|  Other significant information |  Measures taken following the judgement on floor clauses |  07/30/2013 |  | 
|  Other significant information |  Withdrawal of Moodys Bonds ratings |  07/03/2013 |  | 
|  Other significant information |  Ratings Bonds revised by Moody´s                             |  04/26/2013 |  | 
|  Ratings updating |  Moody's Investors Services |  04/25/2013 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  03/25/2013 |  | 
|  Ratings updating |  Fitch Ratings |  03/20/2013 |  | 
|  Other significant information |  Credit Rating assigned by DBRS |  02/22/2013 |  | 
|  Other significant information |  Credit Facility assignment |  01/22/2013 |  | 
|  Other significant information |  Ratings Bonds revised by Moody´s                             |  11/28/2012 |  | 
|  Ratings updating |  Moody's Investors Services |  11/23/2012 |  | 
|  Other significant information |  Actions taken for rating downgrade |  11/05/2012 |  | 
|  Other significant information |  Ratings Series affirmed by Fitch                             |  08/22/2012 |  | 
|  Ratings updating |  Fitch Ratings |  08/21/2012 |  | 
|  Other significant information |  Actions taken for rating downgrade |  08/14/2012 |  | 
|  Other significant information |  Actions taken for rating downgrade |  08/06/2012 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  07/18/2012 |  | 
|  Ratings updating |  Fitch Ratings |  07/16/2012 |  | 
|  Other significant information |  Ratings Bonds revised by Moody´s                             |  07/06/2012 |  | 
|  Ratings updating |  Moody's Investors Services |  07/02/2012 |  | 
|  Other significant information |  Agreements affected after ratings downgrade by Fitch |  06/15/2012 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  05/28/2012 |  | 
|  Ratings updating |  Fitch Ratings |  05/25/2012 |  | 
|  Other significant information |  Agreements affected for downgrade by Moody´s |  05/24/2012 |  | 
|  Other significant information |  Ratings Series revised by Fitch                              |  04/04/2012 |  | 
|  Ratings updating |  Fitch Ratings |  04/03/2012 |  | 
|  Other significant information |  Ratings Bonds revised by Moody´s                             |  02/24/2012 |  | 
|  Ratings updating |  Moody's Investors Services |  02/21/2012 |  | 
|  Other significant information |  Agreement Modification |  02/01/2012 |  | 
|  Other significant information |  Ratings Bonds revised by Moody´s                             |  11/07/2011 |  | 
|  Ratings updating |  Moody's Investors Services |  11/04/2011 |  | 
|  Other significant information |  Ratings Series affirmed by Fitch                             |  07/11/2011 |  | 
|  Ratings updating |  Fitch Ratings |  07/08/2011 |  | 
|  New issue report |  Fitch Ratings |  03/04/2011 |  | 
|  Other significant information |  Credit Rating assigned by Fitch |  02/02/2011 |  | 
|  New issue report |  Moody's Investors Services |  11/20/2009 |  |