Output/Input Price Ratio - Stratification
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Range Distribution:
                       0.800000 - 1.045865:     40 models ( 13.6%)
                       1.045865 - 1.367292:      7 models (  2.4%)
                       1.367292 - 1.787504:     21 models (  7.1%)
                       1.787504 - 2.336860:     20 models (  6.8%)
                       2.336860 - 3.055050:     38 models ( 12.9%)
                       3.055050 - 3.993963:     20 models (  6.8%)
                       3.993963 - 5.221433:    121 models ( 41.2%)
                       5.221433 - 6.826144:      7 models (  2.4%)
                       6.826144 - 8.924032:     17 models (  5.8%)
                      8.924032 - 11.666667:      2 models (  0.7%)