| October 8, 2015 | Jpmorgan Asset Management (UK) LTD | 0.41% | |
| September 17, 2015 | Jpmorgan Asset Management (UK) LTD | 0.52% | |
| January 6, 2015 | Blackrock Institutional Trust Company, National Association | 0.02% | |
| December 9, 2014 | Blackrock Institutional Trust Company, National Association | 0.58% | |
| November 12, 2014 | Blackrock Institutional Trust Company, National Association | 0.69% | |
| November 7, 2014 | Blackrock Institutional Trust Company, National Association | 0.79% | |
| November 5, 2014 | Blackrock Institutional Trust Company, National Association | 0.81% | |
| November 3, 2014 | Blackrock Institutional Trust Company, National Association | 0.79% | |
| October 14, 2014 | Blackrock Institutional Trust Company, National Association | 0.83% | |
| October 8, 2014 | Blackrock Institutional Trust Company, National Association | 0.75% | |
| September 24, 2014 | Blackrock Institutional Trust Company, National Association | 0.60% | |
| September 23, 2014 | Blackrock Institutional Trust Company, National Association | 0.55% | |
| September 22, 2014 | Blackrock Institutional Trust Company, National Association | 0.49% | |
| September 2, 2014 | Blackrock Investment Management (UK) Limited | 0.42% | |
| August 21, 2014 | Blackrock Investment Management (UK) Limited | 0.59% | |
| July 22, 2014 | Blackrock Institutional Trust Company, National Association | 0.58% | |
| July 18, 2014 | Blackrock Investment Management (UK) Limited | 0.62% | |
| July 7, 2014 | Blackrock Investment Management (UK) Limited | 0.51% | |
| June 26, 2014 | Blackrock Investment Management (UK) Limited | 0.48% | |
| May 20, 2014 | Blackrock Institutional Trust Company, National Association | 0.62% | |
| May 8, 2014 | Blackrock Investment Management (UK) Limited | 0.58% | |
| May 8, 2014 | Blackrock Institutional Trust Company, National Association | 0.57% | |
| April 30, 2014 | Blackrock Investment Management (UK) Limited | 0.61% | |
| April 24, 2014 | Blackrock Investment Management (UK) Limited | 0.52% | |
| March 18, 2014 | Blackrock Institutional Trust Company, National Association | 0.68% | |
| March 13, 2014 | Blackrock Institutional Trust Company, National Association | 0.77% | |
| March 12, 2014 | Blackrock Institutional Trust Company, National Association | 0.86% | |
| March 4, 2014 | Blackrock Institutional Trust Company, National Association | 0.98% | |
| February 25, 2014 | Blackrock Institutional Trust Company, National Association | 1.00% | |
| February 4, 2014 | Blackrock Institutional Trust Company, National Association | 0.94% | |
| January 15, 2014 | Blackrock Institutional Trust Company, National Association | 0.89% | |
| January 7, 2014 | Blackrock Institutional Trust Company, National Association | 0.98% | |
| December 10, 2013 | Blackrock Institutional Trust Company, National Association | 1.10% | |
| December 2, 2013 | Blackrock Institutional Trust Company, National Association | 1.00% | |
| November 12, 2013 | Blackrock Institutional Trust Company, National Association | 0.91% | |
| November 5, 2013 | Blackrock Institutional Trust Company, National Association | 0.82% | |
| October 29, 2013 | Blackrock Institutional Trust Company, National Association | 0.71% | |
| October 22, 2013 | Blackrock Institutional Trust Company, National Association | 0.60% | |
| October 15, 2013 | Blackrock Institutional Trust Company, National Association | 0.52% | |
| January 22, 2013 | Blackrock Institutional Trust Company, National Association | 0.48% | |
| January 7, 2013 | Blackrock Institutional Trust Company, National Association | 0.59% | |
| December 21, 2012 | Jpmorgan Asset Management (UK) LTD | 0.48% | |
| December 19, 2012 | Blackrock Institutional Trust Company, National Association | 0.61% | |
| December 17, 2012 | Jpmorgan Asset Management (UK) LTD | 0.58% | |
| December 12, 2012 | Jpmorgan Asset Management (UK) LTD | 0.66% | |
| December 12, 2012 | Blackrock Institutional Trust Company, National Association | 0.51% | |
| December 4, 2012 | Jpmorgan Asset Management (UK) LTD | 0.75% | |