#!/usr/bin/env perl

use strict;
use warnings;

my $str = '1016.1 7.7 20.6 13.8 72.9 215.0 6.64 3.94 5.33 0.0 31.3 31.3 0.0 0.0 716.7 8461717.0 NaN 7750386.0 2224256.0 38507.5 10.9 1016.4 7.7 21.1 13.7 71.1 222.0 6.82 4.67 4.95 0.0 2.1 2.1 0.0 0.0 727.6 11081057.0 NaN 10146792.0 2372829.8 40682.2 11.2 1016.4 7.7 21.6 13.2 67.7 220.0 6.71 4.37 5.1 0.0 0.8 0.8 0.0 0.0 749.9 13780637.0 NaN 12614863.0 4011495.3 44407.4 11.3 1016.4 7.7 21.7 12.3 64.8 216.0 6.64 3.98 5.31 0.0 0.0 0.0 0.0 0.0 693.8 16278537.0 NaN 14898300.0 5267137.5 47598.7 11.1 1016.1 7.7 22.1 9.8 56.4 224.0 6.72 4.7 4.81 0.0 0.0 0.0 0.0 0.0 613.8 18488268.0 NaN 16917212.0 7048784.0 54656.4 11.3 1015.9 7.7 21.6 10.3 59.0 223.0 6.52 4.48 4.74 0.0 0.0 0.0 0.0 0.0 508.5 20319020.0 NaN 18588124.0 8487086.0 52728.9 11.1 1016.0 7.7 20.6 11.8 66.4 217.0 6.22 3.81 4.93 0.0 0.2 0.0 0.0 0.2 387.0 21712000.0 NaN 19859482.0 9532787.0 45898.5 10.5 1016.1 7.7 19.9 12.7 71.8 219.0 5.97 3.74 4.64 0.0 3.3 0.0 0.0 3.3 257.6 22639382.0 NaN 20706258.0 10155480.0 39930.0 9.9 1016.4 7.7 19.4 13.2 74.9 221.0 5.25 3.43 3.97 0.0 1.8 0.0 0.0 1.8 140.2 23144020.0 NaN 21166678.0 10436559.0 36483.1 9.3 1016.4 7.7 19.2 12.5 73.1 232.0 4.04 3.19 2.44 0.0 6.8 2.7 4.3 0.0 47.7 23315526.0 NaN 21323276.0 10494672.0 38582.3 8.0 1016.3 7.7 19.2 11.2 68.6 262.0 2.52 2.49 0.34 0.0 53.8 0.0 24.2 39.1 1.8 23322102.0 NaN 21329584.0 10494672.0 43729.5 6.0 1016.5 7.7 19.0 11.0 68.8 247.0 2.3 2.08 0.98 0.0 100.0 0.0 99.5 100.0 0.1 23322252.0 NaN 21329518.0 10494672.0 43367.8 3.7 1016.7 7.7 18.6 12.0 73.4 225.0 2.3 1.57 1.67 0.0 54.2 0.0 46.3 14.7 0.0 23322252.0 NaN 21329518.0 10494672.0 38219.0 3.6 1016.8 7.7 18.4 14.1 81.9 196.0 2.97 0.75 2.88 0.0 86.4 0.1 82.5 21.9 0.1 23322356.0 NaN 21329518.0 10494672.0 28237.8 4.4 1017.0 7.7 18.5 14.4 82.5 199.0 3.04 0.87 2.92 0.0 99.7 53.1 65.1 98.6 0.0 23322262.0 NaN 21329518.0 10494672.0 27807.3 5.0 1017.0 7.7 18.7 14.1 80.8 195.0 2.52 0.57 2.46 0.0 100.0 71.6 23.1 99.9 0.1 23322488.0 NaN 21329518.0 10494672.0 29676.3 4.6 1017.2 7.7 18.8 14.0 80.0 196.0 2.96 0.78 2.85 0.18 100.0 100.0 100.0 99.7 0.4 23323732.0 NaN 21330926.0 10494672.0 7893.4 4.6 1017.1 7.7 18.6 14.2 81.3 155.0 2.05 -0.98 1.8 1.3 93.7 58.4 63.3 57.6 15.0 23377624.0 NaN 21380274.0 10494672.0 29305.2 4.6 1017.1 7.7 18.6 13.8 80.1 170.0 3.61 -0.55 3.56 1.3 92.8 89.9 30.2 1.7 72.1 23637418.0 NaN 21617728.0 10494761.0 31078.9 5.7 1017.3 7.7 18.9 14.9 83.3 178.0 2.97 -0.13 2.98 1.3 86.3 55.2 68.3 0.0 130.9 24108452.0 NaN 22048990.0 10494719.0 27161.4 5.4 1017.5 7.7 19.7 15.3 81.4 197.0 2.29 0.48 2.24 1.3 57.2 22.3 44.9 0.0 302.4 25197118.0 NaN 23044054.0 10494678.0 28930.3 4.8 1017.7 7.7 20.4 14.6 76.5 198.0 1.82 0.28 1.78 1.3 66.0 10.1 62.2 0.0 413.4 26685568.0 NaN 24404956.0 10494752.0 34279.5 4.0 1017.5 7.7 20.7 13.8 72.6 161.0 2.67 -1.21 2.33 1.3 84.8 0.0 84.8 0.0 429.6 28232080.0 NaN 25819190.0 10495451.0 38634.6 4.6 1017.4 7.7 21.2 13.9 71.5 159.0 3.15 -1.39 2.81 1.3 97.7 0.2 97.7 0.0 444.8 29833140.0 NaN 27281036.0 10495527.0 39613.4 5.3 1017.6 7.7 22.0 13.7 68.4 161.0 2.93 -1.21 2.62 1.3 86.6 1.1 71.8 51.9 558.1 31842300.0 NaN 29115360.0 10495682.0 42999.5 5.7 1017.4 7.7 23.6 11.8 58.0 143.0 2.81 -1.89 2.04 1.3 5.5 0.0 4.9 0.6 628.6 34105344.0 NaN 31181590.0 10496878.0 53270.7 5.5 1017.3 7.7 23.9 10.7 54.4 139.0 3.68 -2.68 2.49 1.3 10.6 0.0 7.9 2.9 673.6 36530392.0 NaN 33394718.0 10504540.0 55330.6 6.5 1017.2 7.7 23.6 11.7 57.8 141.0 4.98 -3.24 3.81 1.3 37.6 0.0 5.4 34.0 671.6 38948084.0 NaN 35600932.0 10572389.0 53759.2 8.3 1017.3 7.7 23.0 12.4 61.2 145.0 5.0 -2.93 4.05 1.3 24.6 0.0 24.6 0.0 563.3 40976088.0 NaN 37452260.0 10577521.0 51063.5 8.4 1017.1 7.7 22.9 13.0 63.6 145.0 4.66 -2.77 3.78 1.3 28.6 0.0 7.3 22.9 465.8 42652852.0 NaN 38982672.0 10578041.0 48385.1 8.3 1017.0 7.7 22.8 12.7 62.7 143.0 4.44 -2.77 3.46 1.3 38.8 0.0 34.2 6.9 350.8 43915868.0 NaN 40134736.0 10578632.0 49670.0 7.6 1016.7 7.7 22.4 12.8 64.2 138.0 4.17 -2.85 3.03 1.3 10.5 0.0 2.4 8.3 232.2 44751760.0 NaN 40897580.0 10579198.0 48024.7 7.1 1016.5 7.7 21.7 14.3 71.1 128.0 3.16 -2.53 1.89 1.3 0.9 0.0 0.0 0.9 131.4 45224988.0 NaN 41329512.0 10638878.0 40243.3 6.6 1016.6 7.7 21.2 14.9 74.9 124.0 2.97 -2.45 1.71 1.3 25.2 0.0 2.4 23.3 44.4 45384908.0 NaN 41475220.0 10681477.0 35910.2 4.9 1016.4 7.7 20.9 15.2 77.1 119.0 2.62 -2.3 1.25 1.3 6.4 0.0 5.8 0.7 1.6 45390616.0 NaN 41480160.0 10681174.0 33633.9 4.5 1016.3 7.7 20.6 15.2 78.0 77.0 3.04 -2.98 -0.49 1.3 1.5 0.0 1.0 0.4 0.1 45390552.0 NaN 41479900.0 10681174.0 32898.9 4.4 1016.3 7.7 19.8 15.5 82.0 83.0 3.6 -3.54 -0.59 1.3 39.6 1.5 0.0 38.6 0.1 45390516.0 NaN 41479900.0 10681174.0 28384.6 5.4 1016.2 7.7 19.8 15.2 80.9 80.0 3.99 -3.89 -0.88 1.3 79.8 0.0 0.1 79.8 0.0 45390256.0 NaN 41479900.0 10681174.0 29798.2 6.2 1016.1 7.7 19.9 14.5 78.0 83.0 4.55 -4.5 -0.65 1.3 72.8 1.8 5.5 70.7 0.1 45390380.0 NaN 41479900.0 10681174.0 33125.9 6.9 1015.7 7.7 19.7 14.8 79.8 79.0 4.93 -4.83 -1.06 1.3 82.5 4.1 0.9 81.6 0.1 45390640.0 NaN 41479900.0 10681174.0 31134.5 7.6 1015.4 7.7 19.6 15.2 81.5 85.0 5.18 -5.15 -0.54 1.3 60.2 1.5 9.8 55.2 2.6 45399888.0 NaN 41488504.0 10681174.0 29202.1 8.0 1015.0 7.7 19.7 16.0 84.4 90.0 5.29 -5.28 -0.08 1.3 72.2 0.4 15.8 66.8 32.6 45517296.0 NaN 41595768.0 10681174.0 25601.0 8.5 1014.9 7.7 19.9 16.2 84.5 91.0 5.63 -5.62 -0.07 1.3 62.2 0.1 3.6 60.7 99.1 45873920.0 NaN 41921652.0 10681188.0 25504.3 8.9 1014.7 7.7 20.5 16.2 82.2 97.0 5.27 -5.26 0.48 1.3 93.6 2.4 5.9 93.0 169.2 46483036.0 NaN 42477320.0 10681384.0 28098.3 8.7 1014.6 7.7 20.8 16.1 80.8 100.0 5.36 -5.29 0.87 1.3 99.7 2.6 12.5 99.7 196.9 47191680.0 NaN 43123740.0 10681074.0 29718.5 8.7 1014.2 7.7 21.7 16.3 78.2 101.0 5.17 -5.08 0.9 1.3 100.0 0.0 5.8 100.0 290.9 48239060.0 NaN 44080204.0 10681266.0 32552.5 8.4 1014.1 7.7 22.3 16.4 76.7 102.0 5.69 -5.59 1.04 1.3 100.0 0.0 0.3 100.0 344.6 49479400.0 NaN 45212932.0 10694658.0 34180.5 9.1 1013.5 7.7 22.0 16.4 77.6 94.0 6.21 -6.2 0.29 1.3 100.0 0.0 14.7 100.0 258.3 50409360.0 NaN 46061948.0 10725906.0 33338.7 9.7 1013.5 7.7 21.4 15.2 75.4 95.0 6.7 -6.69 0.48 1.3 100.0 0.0 79.6 100.0 115.0 50823272.0 NaN 46440372.0 10725795.0 35955.3 10.4 1013.1 7.7 22.0 15.2 73.4 91.0 6.86 -6.86 0.07 1.3 99.5 0.0 78.3 97.8 235.6 51671476.0 NaN 47214844.0 10727690.0 38242.3 10.8';

my @fields = split / /, $str;
my $NaNcount = grep { $_ eq 'NaN' } @fields;

print "There are " . scalar @fields .
	" fields in the line of which $NaNcount are NaN.\n";