Year Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec. 24-Hour Annual Avg. 
2013 10890 12051  12743 14791 15401        
2014 11912 11896 12899 14029    21535 15711     
2015  13991  15366          
2016              
2017  1475   1808  25484 25234   16015  12552 
2018 14955  16378 16865     20517 19379 16840 16179 17545 
2019 15658 14554 15828                     
2020                           
2021                           
2022                           
2023                           
2024