Table:
text: Gaba Corporation
Belting and debelting statistics
Belt changes (April 2010 figures not available)
Feb_2010 Mar_2010 May_2010 Jun_2010 Jul_2010 Aug_2010 Sep_2010 Oct_2010 Nov_2010 Dec_2010 Jan_2011 Feb_2011 Mar_2011 Apr_2011 May_2011 Jun_2011 Jul_2011 Aug_2011 Sep_2011 Oct_2011 Nov_2011 Dec_2011 Jan_2012 Feb_2012 Mar_2012 Apr_2012 May_2012 Jun_2012 Jul_2012 Aug_2012 Sep_2012 Oct_2012 Nov_2012 Dec_2012 Jan_2013 Feb_2013 Mar_2013 Apr_2013 May_2013 Jun_2013 Jul_2013 Aug_2013 Sep_2013 Oct_2013
19 19 18 17 16 16 16 16 15 14 14 14 14 14 14 14 14 13 12 12 13 13 13 13 13 12 12 12 13 13 12 12 13 12 12 12 12 12 12 12 12 12 12 12
20 18 16 17 16 15 15 15 15 15 15 15 15 14 14 14 13 13 12 13 12 12 12 12 11 12 12 12 10 12 13 13 13 13 14 14 14 14 13 13 12 11 11 10

Question: What is the average in April 2013 with a June 2011 of less than 14 in the Gaba Corporation Belting and Debelting statistics?