Area under Normal Curve for Extreme z-scores

  z     Proportion of observations in (-infinity, z]
====    ===========
-8.0    6.221E-16
-7.9    1.395E-15
-7.8    3.095E-15
-7.7    6.803E-15
-7.6    1.481E-14
-7.5    3.191E-14
-7.4    6.809E-14
-7.3    1.439E-13
-7.2    3.011E-13
-7.1    6.238E-13
-7.0    1.280E-12
-6.9    2.600E-12
-6.8    5.231E-12
-6.7    1.042E-11
-6.6    2.056E-11
-6.5    4.016E-11
-6.4    7.769E-11
-6.3    1.488E-10
-6.2    2.823E-10
-6.1    5.303E-10
-6.0    9.866E-10
-5.9    1.818E-09
-5.8    3.316E-09
-5.7    5.990E-09
-5.6    1.072E-08
-5.5    1.899E-08
-5.4    3.332E-08
-5.3    5.790E-08
-5.2    9.964E-08
-5.1    1.698E-07
-5.0    2.867E-07
-4.9    4.792E-07
-4.8    7.933E-07
-4.7    1.301E-06
-4.6    2.112E-06
-4.5    3.398E-06
-4.4    5.413E-06
-4.3    8.540E-06
-4.2    1.335E-05
-4.1    2.066E-05
-4.0    3.167E-05
-3.9    4.810E-05
-3.8    7.235E-05
-3.7    1.078E-04
-3.6    1.591E-04
-3.5    2.326E-04
-3.4    3.369E-04
-3.3    4.834E-04
-3.2    6.871E-04
-3.1    9.676E-04
-3.0    1.350E-03