* The U.S. Demand for Gasoline for Passenger Cars(26 years);

data gasoline;

 label q = 'Demand for Gasoline, in millions of barrels'

       rp = 'Retail Price of Gasoline'

       mpg = 'Average Miles per Gallon'

       n = 'Number of Passenger Cars Registered'

       rpp = 'Real Price of Public Transportation';



   q      year    rp        mpg        n        rpp

----------------------------------------------------

 43771     1     30.64     14.37     66638      87.4

 45246     2     30.42     14.26     69842      88.5

 47567     3     30.35     14.25     72969      90.1

 50275     4     31.15     14.15     76634      91.9

 53312     5     32.08     14.10     80106      95.2

 55110     6     33.16     14.05     82367     100.0

 58524     7     33.71     13.91     85793     104.6

 62448     8     34.84     13.75     89156     112.7

 65784     9     35.69     13.70     92095     128.5

 69514    10     36.43     13.73     96144     137.7

 73463    11     36.13     13.67    100658     143.4

 78011    12     38.82     13.29    106119     144.8

 74217    13     52.41     13.65    109823     148.0

 76457    14     57.22     13.74    111679     158.6

 78847    15     59.47     13.93    115170     174.2

 80677    16     63.07     14.15    118711     182.4

 83233    17     65.71     14.26    121717     187.8

 80233    18     87.79     14.49    125750     200.3

 73375    19    119.10     15.32    127448     251.6

 71718    20    131.10     15.68    129123     312.0

 72848    21    122.20     16.36    129500     346.0

 73156    22    115.70     16.81    131723     362.6

 71180    23    112.90     17.80    133751     385.2

 69450    24    111.50     18.28    137308     402.8

 71404    25     85.70     18.35    140693     426.4

 70984    26     89.70     19.26    142209     441.4