Cant. MPOS keep shares for last 3 blocks now.
I have transaction history for proportional payouts for each block after pool opened.
But here problem to calculate percent from each block, because different reward.
Block 100049
Round Transactions
User Name Type Round Shares Round % Amount
zmeyuka Credit 2,796 31.49 4,461.50782727
ASilentWar Credit 1,340 15.09 2,138.20475336
MrSike Credit 952 10.72 1,519.08278029
balele Credit 452 5.09 721.24518484
mabiyn Credit 420 4.73 670.18357967
trinitech Credit 402 4.53 641.46142516
macare Credit 384 4.32 612.73927207
sergihire Credit 380 4.28 606.35657107
gnomecoin Credit 368 4.14 587.20846948
atetrack Credit 344 3.87 548.91226489
gazza Credit 254 2.86 405.30149802
Gcoinschaer Credit 236 2.66 376.57934493
GuloGUloDesu Credit 194 2.18 309.56098724
dvc420 Credit 193 2.17 307.96531199
sirb Credit 71 0.80 113.29293853
esteeming Credit 45 0.51 71.80538343
Sugarfloodwave Credit 16 0.18 25.53080259
ainogardgrain Credit 15 0.17 23.93512734
anonymous Credit 11 0.12 17.55242775
bigwill305 Credit 6 0.07 9.57405150
Block 100128
Round Transactions
User Name Type Round Shares Round % Amount
zmeyuka Credit 4,440 31.05 346.55476294
ASilentWar Credit 2,336 16.34 182.33151486
MrSike Credit 1,256 8.78 98.03441044
gnomecoin Credit 804 5.62 62.75451113
trinitech Credit 745 5.21 58.14939148
atetrack Credit 728 5.09 56.82249270
mabiyn Credit 718 5.02 56.04196387
balele Credit 636 4.45 49.64162820
macare Credit 616 4.31 48.08057075
gazza Credit 490 3.43 38.24590847
GuloGUloDesu Credit 327 2.29 25.52328995
dvc420 Credit 324 2.27 25.28913139
Gcoinschaer Credit 282 1.97 22.01091063
Rivers Credit 271 1.90 21.15232898
sirb Credit 145 1.01 11.31766681
esteeming Credit 85 0.59 6.63449434
Sugarfloodwave Credit 36 0.25 2.80990353
anonymous Credit 27 0.19 2.10742762
ainogardgrain Credit 17 0.12 1.32689889
bigwill305 Credit 13 0.09 1.01468740
DonCamillo87 Credit 1 0.01 0.07805293
anonymous Credit 1 0.01 0.07805293
....
so the data is available...