Out tac_signatories tac_signatories_2010 tac_signatories_2011 tac_signatories_2012 tac_signatories_2013 tac_signatories_2014 tac_signatories_2015 tac_signatories_2016 tac_signatories_2017 tac_signatories_2018 tac_signatories_2019 tac_signatories_2020 tac_signatories_combined