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:
| Event | Record | Athlete | Nationality | Date |
| --- | --- | --- | --- | --- |
| 100 m | 10.72 (-0.3m/s) | Shelly-Ann Fraser-Pryce | Jamaica | 6 September 2013 |
| 200 m | 21.64 (+0.8m/s) | Merlene Ottey | Jamaica | 13 September 1991 |
| 400 m | 48.83 | Sanya Richards | United States | 4 September 2009 |
| 800 m | 1:55.16 | Pamela Jelimo | Kenya | 6 September 2008 |
| 1000 m | 2:28.98 | Svetlana Masterkova | Russia | 23 August 1996 |
| 1500 m | 3:55.33 | Süreyya Ayhan | Turkey | 5 September 2003 |
| Mile | 4:17.75 | Maryam Yusuf Jamal | Bahrain | 14 September 2007 |
| 2000 m | 5:30.19 | Gelete Burka | Ethiopia | 4 September 2009 |
| 3000 m | 8:24.81+ | Meseret Defar | Ethiopia | 14 September 2007 |
| Two miles | 8:58.58 | Meseret Defar | Ethiopia | 14 September 2007 |
| 5000 m | 14:25.43 | Vivian Cheruiyot | Kenya | 6 September 2008 |
| 100 m hurdles | 12.42 (-0.3m/s) | Yordanka Donkova | Bulgaria | 5 September 1986 |
| 400 m hurdles | 53.43 | Nezha Bidouane | Morocco | 28 August 1998 |
| 3000 m steeplechase | 9:15.06 | Milcah Chemos | Kenya | 6 September 2013 |
| High jump | 2.05 m | Anna Chicherova | Russia | 16 September 2011 |
| Pole vault | 4.93 m | Yelena Isinbayeva | Russia | 26 August 2005 |
| Long jump | 7.25 m (+1.7m/s) | Heike Drechsler | Germany | 13 September 1991 |
| Triple jump | 15.14 m (+0.3m/s) | Tatyana Lebedeva | Russia | 5 September 2003 |
| Shot put | 20.57 m | Natalya Lisovskaya | Soviet Union | 11 September 1987 |
| Discus throw | 69.84 m | Tsvetanka Christova | Bulgaria | 5 September 1986 |
| Javelin throw | 72.18 m ( old design ) 67.76 m ( Current design ) | Fatima Whitbread Trine Hattestad | United Kingdom Norway | 5 September 1986 25 August 2000 |
| 4×100 m relay | 42.97 | United States | United States | 19 August 1988 |
Question:
What was the date of the discus throw for Bulgaria?
Answer:
5 September 1986