year|quarter|orig_ltv_min|gnm_bucket|upb_dist|wtavg_aoltv
2008|4|100|0|0.0009|0.8955
2008|4|  0|0|0.2251|0.4090
2008|4| 60|0|0.1593|0.6027
2008|4| 70|0|0.1002|0.6730
2008|4| 75|0|0.3450|0.7447
2008|4| 80|0|0.0825|0.8245
2008|4| 90|0|0.0475|0.8909
2008|4| 95|1|0.0393|0.9639