Bureau of Transportation Statistics (BTS)
BTS Home > Publications > Journal of Transportation and Statistics > Volume 7 Number 1 > Paper 5
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Figure 8: Trend for Late Arrivals Series: September 1987-February 2002

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Date Arrive Late Trend
Sep-87 22.91274 25.22117
Oct-87 19.60947 24.858167
Nov-87 23.84278 24.858167
Dec-87 33.48978 25.403677
Jan-88 30.64676 24.529044
Feb-88 25.23977 23.040062
Mar-88 21.10317 21.507314
Apr-88 17.32967 20.485667
May-88 18.03329 19.616699
Jun-88 15.61631 18.252499
Jul-88 18.45969 18.366253
Aug-88 17.04326 18.417795
Sep-88 14.37269 18.965857
Oct-88 16.59565 19.967786
Nov-88 22.33825 20.96485
Dec-88 23.86316 20.938862
Jan-89 23.31793 21.641317
Feb-89 27.57885 23.317268
Mar-89 30.38276 24.212264
Apr-89 16.60511 23.267704
May-89 20.53874 23.72955
Jun-89 27.82352 24.270864
Jul-89 23.12581 24.07741
Aug-89 25.36865 24.195381
Sep-89 20.3863 23.898946
Oct-89 20.5397 23.670055
Nov-89 21.97807 23.349854
Dec-89 29.80139 22.988098
Jan-90 22.39621 21.964337
Feb-90 26.77955 22.359109
Mar-90 23.45607 21.916129
Apr-90 17.78644 21.289172
May-90 19.1577 20.938864
Jun-90 19.93781 20.164027
Jul-90 18.9418 20.005498
Aug-90 21.4632 20.198473
Sep-90 15.58588 19.944341
Oct-90 17.5806 20.060162
Nov-90 15.42839 19.851993
Dec-90 29.6969 20.693396
Jan-91 26.16719 20.08972
Feb-91 18.15044 18.886085
Mar-91 19.99399 18.688173
Apr-91 16.62427 18.389992
May-91 16.49834 17.74742
Jun-91 14.71894 16.490081
Jul-91 15.50569 16.401412
Aug-91 16.72981 16.604189
Sep-91 12.09603 16.76713
Oct-91 16.60775 17.411802
Nov-91 17.28484 17.133432
Dec-91 20.04338 16.268913
Jan-92 18.60818 15.828873
Feb-92 16.5733 15.968078
Mar-92 19.09917 16.6336
Apr-92 13.40281 16.784203
May-92 13.44588 17.168071
Jun-92 18.96266 17.821395
Jul-92 20.22239 18.602104
Aug-92 19.66137 18.774702
Sep-92 14.80782 18.635363
Oct-92 14.18532 18.676154
Nov-92 17.31979 19.112054
Dec-92 26.10514 19.656733
Jan-93 22.37419 19.669868
Feb-93 23.14702 20.289057
Mar-93 26.39383 20.629132
Apr-93 17.08054 19.274738
May-93 12.89027 17.729147
Jun-93 16.75369 16.852265
Jul-93 13.94117 16.546053
Aug-93 15.87771 17.142369
Sep-93 15.36926 18.195922
Oct-93 16.96058 19.071756
Nov-93 18.82447 19.49189
Dec-93 21.38893 19.618633
Jan-94 29.53374 20.886414
Feb-94 26.16926 20.635425
Mar-94 17.4361 19.148608
Apr-94 16.97289 18.640675
May-94 12.3694 17.753335
Jun-94 18.23044 17.72958
Jul-94 20.5469 18.062177
Aug-94 16.24546 17.477596
Sep-94 12.04843 17.338623
Oct-94 14.07329 17.902727
Nov-94 19.2489 18.625468
Dec-94 20.74818 18.593294
Jan-95 26.17259 19.564655
Feb-95 21.09096 19.746397
Mar-95 20.70214 20.190117
Apr-95 18.69618 20.817376
May-95 19.32279 21.227339
Jun-95 24.0586 21.256887
Jul-95 19.91882 20.820155
Aug-95 20.14525 20.676876
Sep-95 14.41548 20.728747
Oct-95 17.90736 21.849481
Nov-95 22.14985 23.169138
Dec-95 32.34025 24.32121
Jan-96 37.33029 24.380183
Feb-96 28.09632 24.439156
Mar-96 24.06193 23.933273
Apr-96 19.81826 23.747997
May-96 21.08157 23.992038
Jun-96 25.3321 24.215315
Jul-96 24.71486 24.57473
Aug-96 25.30987 24.85524
Sep-96 21.30936 24.97828
Oct-96 22.81499 25.224739
Nov-96 22.08565 25.122247
Dec-96 33.37434 25.573426
Jan-97 31.59371 25.009494
Feb-97 24.78564 23.664422
Mar-97 21.90197 22.661182
Apr-97 20.15363 22.295991
May-97 16.84206 21.721071
Jun-97 23.86491 21.829207
Jul-97 22.50311 21.744938
Aug-97 21.43534 21.360792
Sep-97 14.96903 20.955069
Oct-97 18.4526 21.501213
Nov-97 21.77757 21.926822
Dec-97 26.46439 21.873778
Jan-98 24.94751 21.953414
Feb-98 24.60783 22.5355
Mar-98 24.14842 23.119363
Apr-98 20.87773 23.701908
May-98 22.5176 24.318497
Jun-98 29.58356 24.517612
Jul-98 21.14227 23.440906
Aug-98 22.96688 23.157235
Sep-98 21.06371 22.9467
Oct-98 18.25467 22.221052
Nov-98 16.71439 21.703003
Dec-98 26.78296 22.436536
Jan-99 32.33571 23.390055
Feb-99 21.09442 22.718141
Mar-99 21.90998 23.369467
Apr-99 24.27056 24.909213
May-99 23.81475 25.701603
Jun-99 29.12348 26.107253
Jul-99 28.93194 25.969926
Aug-99 23.88661 24.744774
Sep-99 20.65286 23.831521
Oct-99 19.94025 22.866402
Nov-99 18.58512 21.736964
Dec-99 22.00326 21.202401
Jan-00 26.25357 22.155483
Feb-00 25.23988 23.216302
Mar-00 23.01167 24.296327
Apr-00 24.63007 26.202266
May-00 25.74623 27.694622
Jun-00 33.66186 28.822239
Jul-00 29.69471 28.754954
Aug-00 30.03586 28.32287
Sep-00 21.90383 27.283411
Oct-00 23.92658 26.978989
Nov-00 27.37656 26.55539
Dec-00 37.59103 25.306179
Jan-01 24.76589 24.056968
Feb-01 27.33524 24.127235
Mar-01 24.85218 23.793236
Apr-01 20.80052 23.447234
May-01 18.59185 23.071826
Jun-01 24.86393 23.236807
Jul-01 21.94491 23.355462
Aug-01 23.90744 23.949633
Sep-01 32.50572 24.563966
Oct-01 15.17606 21.150508
Nov-01 15.29208 18.6626
Dec-01 19.77858 16.847752
Jan-02 18.97735 15.759012
Feb-02 15.30579 15.092548
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