Automatic Counter Volumes
| Year | Jan. | Feb. | Mar. | Apr. | May. | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. | 24-Hour Annual Avg. |
| 1990 |
17606 |
18135 |
18251 |
17671 |
16783 |
17590 |
17146 |
17792 |
16798 |
16436 |
17030 |
15519 |
17222 |
| 1991 |
16327 |
17345 |
16970 |
18569 |
17398 |
17740 |
18576 |
24501 |
29632 |
28728 |
28240 |
27786 |
21836 |
| 1992 |
29175 |
23893 |
19272 |
20298 |
18317 |
19904 |
18584 |
18209 |
20650 |
20591 |
19073 |
18681 |
20598 |
| 1993 |
18026 |
20499 |
20514 |
22170 |
20378 |
20857 |
19578 |
19598 |
21128 |
20302 |
19789 |
20371 |
20258 |
| 1994 |
19959 |
21598 |
22081 |
22149 |
20726 |
21587 |
19237 |
20752 |
22304 |
22034 |
21100 |
20010 |
21117 |
| 1995 |
20546 |
22216 |
22793 |
23268 |
21540 |
22196 |
20158 |
21477 |
22705 |
23121 |
21363 |
20161 |
21795 |
| 1996 |
20448 |
22321 |
22202 |
23363 |
19201 |
19350 |
18888 |
20416 |
22299 |
21759 |
21253 |
19149 |
20887 |
| 1997 |
19405 |
21692 |
21451 |
22892 |
21342 |
20788 |
19020 |
20290 |
22514 |
22329 |
21353 |
19631 |
21059 |
| 1998 |
19271 |
21864 |
21797 |
23159 |
20727 |
21107 |
19252 |
20495 |
21974 |
21952 |
20356 |
19475 |
20952 |
| 1999 |
19518 |
21272 |
21501 |
22603 |
20858 |
21076 |
19194 |
20618 |
21763 |
22083 |
20663 |
19347 |
20875 |
| 2000 |
19616 |
23587 |
23405 |
22618 |
20823 |
21599 |
19762 |
20100 |
21703 |
22145 |
20723 |
19623 |
21309 |
| 2001 |
19436 |
21493 |
21412 |
22482 |
20039 |
19923 |
18606 |
19861 |
20887 |
21145 |
20062 |
18231 |
20298 |
| 2002 |
18780 |
20359 |
19571 |
21499 |
19520 |
18681 |
17578 |
18687 |
20228 |
20793 |
19174 |
18294 |
19430 |
| 2003 |
18954 |
20243 |
19242 |
21098 |
19460 |
19524 |
18371 |
18763 |
21269 |
21282 |
18985 |
18583 |
19648 |
| 2004 |
18620 |
20283 |
20764 |
21681 |
19252 |
18921 |
17969 |
19302 |
21500 |
20891 |
19922 |
18493 |
19800 |
| 2005 |
19075 |
20655 |
20571 |
21478 |
19333 |
19284 |
18133 |
20635 |
|
21144 |
19881 |
18428 |
|
| 2006 |
18851 |
21100 |
20702 |
21278 |
20579 |
19203 |
18186 |
22243 |
|
|
21652 |
18150 |
|
| 2007 |
19246 |
21151 |
20827 |
21602 |
21606 |
|
18881 |
19811 |
17576 |
22467 |
20524 |
18429 |
|
| 2008 |
17927 |
20914 |
19800 |
21612 |
19743 |
18224 |
17474 |
18195 |
|
19591 |
18182 |
17205 |
|
| 2009 |
16922 |
19597 |
18919 |
20666 |
18317 |
17620 |
17548 |
|
|
19601 |
17914 |
17194 |
|
| 2010 |
16733 |
19813 |
19736 |
|
17855 |
17883 |
17508 |
|
20858 |
19674 |
17978 |
17489 |
|
| 2011 |
17819 |
19518 |
20288 |
20600 |
18231 |
17587 |
16871 |
18450 |
20657 |
18462 |
19067 |
16733 |
18690 |
| 2012 |
16864 |
18187 |
|
20085 |
|
|
17524 |
18469 |
21343 |
|
18695 |
17650 |
18685 |
| 2013 |
14884 |
|
19904 |
19515 |
18127 |
17107 |
15704 |
16489 |
20488 |
19899 |
18207 |
16989 |
|
| 2014 |
16227 |
19352 |
19330 |
20736 |
19113 |
17926 |
17504 |
18624 |
20352 |
20464 |
17891 |
17966 |
18790 |
| 2015 |
18132 |
20140 |
19711 |
21022 |
19211 |
18995 |
18554 |
19381 |
21123 |
20949 |
19133 |
18560 |
19576 |
| 2016 |
22615 |
24708 |
23760 |
25439 |
23365 |
22479 |
22143 |
23815 |
22131 |
21202 |
19151 |
17532 |
22362 |
| 2017 |
18112 |
20290 |
20333 |
21719 |
19527 |
19595 |
18044 |
20184 |
21411 |
21628 |
19508 |
18208 |
19880 |
| 2018 |
19277 |
20476 |
20505 |
21939 |
20122 |
19807 |
18841 |
20251 |
22237 |
20529 |
18623 |
16994 |
19967 |
| 2019 |
17815 |
19517 |
19568 |
21368 |
19635 |
18419 |
17639 |
18783 |
20017 |
20618 |
33819 |
25836 |
21086 |
| 2020 |
17567 |
29155 |
21330 |
17536 |
11762 |
14538 |
12951 |
14663 |
16799 |
18528 |
12985 |
12016 |
16653 |
| 2021 |
13215 |
14302 |
15657 |
15767 |
15732 |
15520 |
13830 |
15594 |
16441 |
16207 |
14517 |
13585 |
15031 |
| 2022 |
13349 |
15088 |
15690 |
16568 |
15790 |
15358 |
14871 |
16506 |
17321 |
17314 |
14793 |
13253 |
15492 |
| 2023 |
14306 |
15292 |
15182 |
16805 |
16265 |
15780 |
14989 |
16609 |
16616 |
17086 |
15102 |
14033 |
15672 |
| 2024 |
13612 |
15869 |
15542 |
16552 |
15713 |
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