Table:
text: EBS International Documentary Festival
History
History
Year_ Date_Opening Date_Closing Opening_Film Number_of_Screening
2011 August 19 August 25 How Are You Doing, Rudolf Ming? 51 films 43 televised
2012 August 17 August 24 Bully 48 films 34 televised

Question: What is the date (closure) if the year is greater than 2011 at the EBS International Documentary Festival?