threshhold (rms)    <I>

     0.000000000     0.99999
     0.010000090     0.99895
     0.020000180     0.99591
     0.030000269     0.99123
     0.040000360     0.98545
     0.050000455     0.97805
     0.060000539     0.96990
     0.070000634     0.96075
     0.080000721     0.95141
     0.090000816     0.94133
     0.100000910     0.93112
     0.110000998     0.92049
     0.120001078     0.90949
     0.130001172     0.89829
     0.140001267     0.88785
     0.150001362     0.87693
     0.160001442     0.86626
     0.170001537     0.85471
     0.180001631     0.84383
     0.190001711     0.83345
     0.200001821     0.82305
     0.210001901     0.81303
     0.220001996     0.80333
     0.230002075     0.79359
     0.240002155     0.78409
     0.250002265     0.77475
     0.260002345     0.76568
     0.270002455     0.75640
     0.280002534     0.74737
     0.290002644     0.73831
     0.300002724     0.72949
     0.310002804     0.72028
     0.320002884     0.71129
     0.330002964     0.70256
     0.340003073     0.69411
     0.350003183     0.68534
     0.360003263     0.67680
     0.370003343     0.66821
     0.380003422     0.66007
     0.390003562     0.65169