Automatic Counter Volumes
| Year | Jan. | Feb. | Mar. | Apr. | May. | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. | 24-Hour Annual Avg. |
| 1998 |
15643 |
17603 |
19535 |
20959 |
20492 |
20146 |
20483 |
|
20470 |
21102 |
19658 |
18052 |
|
| 1999 |
17069 |
18208 |
21223 |
21794 |
22465 |
23854 |
25000 |
25380 |
25100 |
22537 |
22009 |
18777 |
21951 |
| 2000 |
16752 |
20065 |
|
21715 |
22556 |
|
|
21279 |
19360 |
|
|
16612 |
|
| 2001 |
16615 |
|
|
|
|
|
|
|
|
|
|
|
|
| 2002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2003 |
|
20461 |
22993 |
22246 |
25123 |
26485 |
23800 |
27335 |
26754 |
|
|
|
|
| 2004 |
|
|
|
25083 |
24303 |
27252 |
26754 |
26201 |
25809 |
25134 |
21646 |
20316 |
|
| 2005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2006 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2007 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2008 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2009 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2010 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2011 |
15617 |
16417 |
18456 |
|
|
|
|
|
|
|
|
16587 |
|
| 2012 |
15422 |
|
|
|
|
|
|
|
|
|
|
|
|
| 2013 |
14541 |
16239 |
18118 |
|
|
|
|
|
|
|
18381 |
16829 |
|
| 2014 |
15731 |
15769 |
19188 |
|
20313 |
|
|
21926 |
20936 |
20426 |
18007 |
17508 |
|
| 2015 |
17247 |
18992 |
21105 |
21718 |
|
|
|
|
|
|
|
|
|
| 2016 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2017 |
17415 |
|
22644 |
|
|
|
|
|
|
|
|
|
|
| 2018 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2019 |
17635 |
17113 |
22160 |
23549 |
24563 |
26391 |
26222 |
26267 |
24573 |
22981 |
20566 |
16912 |
22445 |
| 2020 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2021 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2022 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2023 |
|
|
|
|
|
|
|
|
|
|
|
|
|