cohort,age,active_customers,cohort_size,retention_pct
2010-12,0,885,885,100.0
2010-12,1,324,885,36.610169491525426
2010-12,2,286,885,32.31638418079096
2010-12,3,340,885,38.4180790960452
2010-12,4,321,885,36.271186440677965
2010-12,5,352,885,39.77401129943503
2010-12,6,321,885,36.271186440677965
2010-12,7,309,885,34.91525423728814
2010-12,8,313,885,35.367231638418076
2010-12,9,350,885,39.548022598870055
2010-12,10,331,885,37.40112994350282
2010-12,11,445,885,50.282485875706215
2011-01,0,417,417,100.0
2011-01,1,92,417,22.062350119904078
2011-01,2,111,417,26.618705035971225
2011-01,3,96,417,23.02158273381295
2011-01,4,134,417,32.13429256594724
2011-01,5,120,417,28.776978417266186
2011-01,6,103,417,24.700239808153476
2011-01,7,101,417,24.22062350119904
2011-01,8,125,417,29.976019184652277
2011-01,9,136,417,32.61390887290168
2011-01,10,152,417,36.45083932853717
2011-02,0,380,380,100.0
2011-02,1,71,380,18.68421052631579
2011-02,2,71,380,18.68421052631579
2011-02,3,108,380,28.42105263157895
2011-02,4,103,380,27.105263157894736
2011-02,5,94,380,24.736842105263158
2011-02,6,96,380,25.263157894736842
2011-02,7,106,380,27.894736842105264
2011-02,8,94,380,24.736842105263158
2011-02,9,116,380,30.526315789473685
2011-03,0,452,452,100.0
2011-03,1,68,452,15.044247787610619
2011-03,2,114,452,25.221238938053098
2011-03,3,90,452,19.911504424778762
2011-03,4,101,452,22.345132743362832
2011-03,5,76,452,16.8141592920354
2011-03,6,121,452,26.76991150442478
2011-03,7,104,452,23.008849557522122
2011-03,8,126,452,27.876106194690266
2011-04,0,300,300,100.0
2011-04,1,64,300,21.333333333333332
2011-04,2,61,300,20.333333333333332
2011-04,3,63,300,21.0
2011-04,4,59,300,19.666666666666668
2011-04,5,68,300,22.666666666666668
2011-04,6,65,300,21.666666666666668
2011-04,7,78,300,26.0
2011-05,0,284,284,100.0
2011-05,1,54,284,19.014084507042252
2011-05,2,49,284,17.253521126760564
2011-05,3,49,284,17.253521126760564
2011-05,4,59,284,20.774647887323944
2011-05,5,66,284,23.239436619718308
2011-05,6,75,284,26.408450704225352
2011-06,0,242,242,100.0
2011-06,1,42,242,17.355371900826448
2011-06,2,38,242,15.702479338842975
2011-06,3,64,242,26.446280991735538
2011-06,4,56,242,23.140495867768596
2011-06,5,81,242,33.47107438016529
2011-07,0,188,188,100.0
2011-07,1,34,188,18.085106382978722
2011-07,2,39,188,20.74468085106383
2011-07,3,42,188,22.340425531914892
2011-07,4,51,188,27.127659574468087
2011-08,0,169,169,100.0
2011-08,1,35,169,20.71005917159763
2011-08,2,42,169,24.85207100591716
2011-08,3,41,169,24.2603550295858
2011-09,0,299,299,100.0
2011-09,1,70,299,23.411371237458194
2011-09,2,90,299,30.100334448160535
2011-10,0,358,358,100.0
2011-10,1,86,358,24.022346368715084
2011-11,0,323,323,100.0