Month,Air RPM (000s),Rail PM,VMT (billions)
-90,"35,153,577","454,115,779",163.28
-90,"32,965,187","435,086,002",153.25
-90,"39,993,913","568,289,732",178.42
-90,"37,981,886","568,101,697",178.68
-90,"38,419,672","539,628,385",188.88
-90,"42,819,023","570,694,457",189.16
-90,"45,770,315","618,571,581",195.09
-90,"48,763,670","609,210,368",196.67
-90,"38,173,223","488,444,939",178.07
-90,"39,051,877","514,253,920",182.27
-90,"35,699,216","516,429,873",171.23
-90,"37,444,088","531,619,395",168.29
-91,"34,848,290","496,467,387",157.88
-91,"29,672,427","469,504,489",153.34
-91,"36,202,993","587,905,914",179.06
-91,"37,146,602","509,488,334",179.52
-91,"38,869,421","566,342,448",191.91
-91,"42,199,760","603,845,247",193.45
-91,"45,384,965","633,450,001",198.37
-91,"48,164,550","664,013,874",204.05
-91,"38,481,957","494,557,648",183.58
-91,"39,062,110","509,037,626",188.43
-91,"34,688,141","472,359,118",169.68
-91,"38,575,165","550,795,984",172.77
-92,"35,265,807","493,541,137",167.89
-92,"33,868,884","462,084,011",160.43
-92,"39,724,539","559,205,172",184.03
-92,"37,294,373","572,122,965",186.32
-92,"39,728,367","546,043,825",196.99
-92,"45,754,460","478,204,759",197.49
-92,"50,807,813","610,774,196",206.88
-92,"53,219,046","627,359,211",205.02
-92,"41,564,915","516,516,158",191.16
-92,"40,578,092","538,313,763",195.10
-92,"36,863,415","539,769,246",177.62
-92,"39,045,016","551,397,116",181.25
-93,"37,911,556","500,349,189",171.66
-93,"34,902,869","461,280,157",162.82
-93,"42,058,882","534,476,186",187.84
-93,"40,814,097","562,429,065",188.71
-93,"42,133,943","554,039,017",205.95
-93,"44,679,864","580,500,717",199.39
-93,"48,622,037","586,861,727",209.81
-93,"50,451,675","611,839,976",209.60
-93,"41,677,832","501,353,952",193.74
-93,"43,264,475","507,702,230",197.76
-93,"38,868,799","489,299,178",182.30
-93,"40,610,043","503,041,903",186.80
-94,"38,863,562","472,917,856",169.31
-94,"36,068,535","463,567,851",166.45
-94,"45,433,842","572,167,273",196.19
-94,"42,418,163","546,898,075",195.41
-94,"44,297,210","524,008,197",206.60
-94,"48,169,096","531,971,149",207.28
-94,"52,410,979","578,257,564",214.78
-94,"53,235,052","587,229,076",215.05
-94,"44,677,623","490,032,783",200.51
-94,"45,845,403","493,619,903",202.86
-94,"42,230,318","477,594,716",190.07
-94,"43,868,116","490,779,357",193.09
-95,"42,050,940","425,207,429",183.62
-95,"38,580,784","393,268,412",172.52
-95,"47,390,145","489,360,683",202.41
-95,"45,427,499","490,903,635",199.53
-95,"45,915,722","511,120,586",213.56
-95,"49,992,583","542,693,418",212.28
-95,"53,345,749","571,259,638",217.72
-95,"54,776,466","580,982,161",219.87
-95,"45,589,237","451,385,426",204.32
-95,"46,993,036","441,202,778",206.99
-95,"43,703,386","435,470,011",195.41
-95,"45,015,358","444,598,571",194.59
-96,"42,734,234","362,022,328",183.74
-96,"43,056,589","343,413,949",176.82
-96,"51,646,570","416,042,895",204.47
-96,"48,063,492","425,092,726",205.56
-96,"49,808,809","467,573,082",219.00
-96,"53,774,378","476,554,648",215.87
-96,"56,576,582","525,954,361",225.44
-96,"58,714,135","551,695,523",229.39
-96,"47,857,913","412,344,840",207.91
-96,"49,873,317","425,991,795",215.97
-96,"44,696,485","389,249,720",199.94
-96,"49,361,193","437,256,586",201.75
-97,"46,692,784","337,798,678",190.13
-97,"43,761,932","337,893,100",183.95
-97,"54,755,166","416,925,515",211.95
-97,"50,182,894","408,488,665",211.29
-97,"51,979,543","444,032,624",226.08
-97,"55,462,027","481,053,743",222.25
-97,"58,771,317","540,293,509",236.71
-97,"60,496,856","552,486,079",233.50
-97,"50,076,953","425,814,893",213.55
-97,"51,846,329","445,858,326",221.22
-97,"47,743,798","441,249,575",202.42
-97,"50,414,361","454,400,575",207.32
-98,"47,290,992","371,355,589",196.87
-98,"44,641,209","326,874,247",187.17
-98,"54,453,961","426,172,239",214.22
-98,"53,044,174","447,877,815",217.92
-98,"54,302,581","462,341,914",227.90
-98,"57,335,447","482,325,897",228.73
-98,"59,441,840","537,481,124",239.94
-98,"60,813,085","526,444,502",237.14
-98,"49,560,508","430,364,874",219.46
-98,"53,463,147","444,719,403",228.52
-98,"49,561,082","427,669,956",211.18
-98,"51,024,977","459,051,399",216.30
-99,"48,861,094","384,824,724",194.44
-99,"46,158,194","350,270,063",192.33
-99,"57,761,057","436,837,107",221.74
-99,"54,968,382","435,360,347",221.98
-99,"55,469,960","450,054,655",231.81
-99,"59,918,608","496,553,598",237.02
-99,"64,397,523","543,923,323",244.20
-99,"63,752,132","528,001,216",242.57
-99,"53,733,696","393,137,094",225.30
-99,"57,407,208","425,897,553",234.66
-99,"53,866,781","421,595,015",222.83
-99,"52,331,272","442,742,459",222.46
-00,"49,745,428","366,607,410",203.58
-00,"49,876,910","366,139,276",199.64
-00,"61,378,569","453,096,388",232.63
-00,"58,981,617","473,751,011",227.81
-00,"61,165,486","481,725,263",242.11
-00,"65,524,091","517,102,460",243.01
-00,"67,883,256","564,747,276",245.08
-00,"66,924,512","558,060,051",247.77
-00,"56,441,629","446,489,429",227.33
-00,"58,834,210","462,329,685",236.55
-00,"56,283,261","442,268,378",222.80
-00,"55,380,280","461,651,082",218.44
-01,"53,129,922","379,458,113",209.26
-01,"49,992,995","366,288,212",199.91
-01,"62,323,049","448,912,584",231.49
-01,"59,801,562","455,496,342",231.37
-01,"60,246,477","462,376,555",244.25
-01,"64,987,625","528,690,495",242.58
-01,"68,573,410","564,037,290",248.79
-01,"69,003,617","562,266,005",251.69
-01,"39,106,905","446,266,947",224.57
-01,"44,271,037","452,095,235",240.00
-01,"45,245,063","446,094,295",229.48
-01,"48,167,518","479,188,434",228.09
-02,"46,587,818","398,440,459",213.81
-02,"45,157,533","397,948,828",206.46
-02,"57,423,155","461,087,451",234.01
-02,"53,013,066","453,147,413",234.81
-02,"55,663,570","461,648,459",249.89
-02,"60,224,150","499,751,748",246.39
-02,"62,570,110","564,046,073",254.19
-02,"62,881,793","516,103,068",256.24
-02,"48,925,997","385,097,846",230.60
-02,"52,779,975","399,248,774",243.29
-02,"48,902,677","375,996,408",228.39
-02,"55,355,434","448,246,102",231.26
-03,"50,602,700","393,287,373",216.60
-03,"46,455,943","390,041,481",201.90
-03,"56,033,121","472,573,962",236.70
-03,"51,146,721","483,653,074",238.10
-03,"53,591,384","489,484,678",253.20
-03,"59,426,357","531,138,943",252.00
-03,"65,041,408","578,767,927",261.30
-03,"64,095,456","557,897,322",259.60
-03,"51,347,366","427,807,444",236.00
-03,"55,810,667","463,025,617",253.40
-03,"53,249,129","448,181,812",233.30
-03,"57,795,908","489,403,554",237.60
-04,"53,447,972","410,338,691",217.30
-04,"52,608,801","389,778,365",210.40
-04,"63,600,019","453,014,590",247.50
-04,"61,887,720","471,116,666",245.40