year|quarter|orig_ltv_min|gnm_bucket|upb_dist|wtavg_aoltv
2007|4|100|0|0.0010|0.8878
2007|4|  0|0|0.2284|0.4107
2007|4| 60|0|0.1593|0.6063
2007|4| 70|0|0.1000|0.6761
2007|4| 75|0|0.3547|0.7512
2007|4| 80|0|0.0739|0.8224
2007|4| 90|0|0.0432|0.8908
2007|4| 95|1|0.0395|0.9733