Bus and subway ridership in Washington D.C. duringthe summer months is believed

Bus and subway ridership in Washington D.C. duringthe summer months is believed to be heavily tiedto the number of tourists visiting the city. During thepast 12 years the following data have been obtained:NUMBEROF TOURISTS RIDERSHIPYEAR (1000000s) (100000s)1 7 152 2 103 6 134 4 155 14 256 15 277 16 248 12 209 14 2710 20 4411 15 3412 7 17
Bus and subway ridership in Washington D.C. duringthe summer months is believed to be heavily tiedto the number of tourists visiting the city. During thepast 12 years the following data have been obtained: YEAR NUMBER OF TOURISTS (1000000s) RIDERSHIP (100000s)1 7 1522 103 6 1344 155 14 256 15 277 16 248 12 209 14 2710 20 4411 15 3412 7 17
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