Troitsk nu-mass (phase 1) result, 2003:

Source: V.M.Lobashev. "The search for the neutrino mass by direct method in the tritium beta-decay and perspectives of study it in the project KATRIN". Nuclear Physics A, Volume 719, 19 May 2003, pp. 153-160

Recalculated result (2011):

Source: V. N. Aseev et al. “Upper limit on the electron antineutrino mass from the Troitsk experiment”
Phys. Rev. D 84, 112003, 2011 (Vol.84, No.11).

Combined Troitsk and Mainz data: