Annual Reports Title View 2020 10-K 2020 10-K 2020 Letter to Shareholders 2020 Letter to Shareholders 2020 Shareholder Letter Supplement 2020 Shareholder Letter Supplement 2019 Shareholder Letter Supplement 2019 Shareholder Letter Supplement 2019 Letter to Shareholders 2019 Letter to Shareholders 2019 10-K 2019 10-K 2018 Shareholder Letter Supplement 2018 Shareholder Letter Supplement 2018 Letter to Shareholders 2018 Letter to Shareholders 2018 10-K 2018 10-K 2017 10-K 2017 10-K 2017 Letter to Shareholders 2017 Letter to Shareholders 2016 Letter to Shareholders 2016 Letter to Shareholders 2016 10-K 2016 10-K 2015 10-K 2015 10-K 2015 Letter to Shareholders 2015 Letter to Shareholders 2014 10-K 2014 10-K 2014 Letter to Shareholders 2014 Letter to Shareholders 2013 Letter to Shareholders 2013 Letter to Shareholders 2013 10-K 2013 10-K 2012 Letter to Shareholders 2012 Letter to Shareholders 2012 10-K 2012 10-K 2011 10-K 2011 10-K 2011 Letter to Shareholders 2011 Letter to Shareholders 2010 Letter to Shareholders 2010 Letter to Shareholders 2010 10-K 2010 10-K 2009 Letter to Shareholders 2009 Letter to Shareholders 2009 10-K 2009 10-K Archived Proxy Statements Title View 2021 Proxy Statement 2021 Proxy Statement 2020 Proxy Statement 2020 Proxy Statement 2019 Proxy Statement 2019 Proxy Statement 2018 Proxy Statement 2018 Proxy Statement 2017 Proxy Statement 2017 Proxy Statement 2016 Proxy Statement 2016 Proxy Statement 2015 Proxy Statement 2015 Proxy Statement