quarter	gas	price	income	miles
1959.1	-8.015248	4.67575	-4.50524	2.647592
1959.2	-8.01106	4.691292	-4.492739	2.647592
1959.3	-8.019878	4.689134	-4.498873	2.647592
1959.4	-8.012581	4.722338	-4.491904	2.647592
1960.1	-8.016769	4.70747	-4.490103	2.647415
1960.2	-7.976376	4.699136	-4.489107	2.647238
1960.3	-7.997135	4.72129	-4.492301	2.647061
1960.4	-8.005725	4.722736	-4.496271	2.646884
1961.1	-8.009368	4.706207	-4.489013	2.648654
1961.2	-7.989948	4.675196	-4.477735	2.650421
1961.3	-8.003017	4.694643	-4.469735	2.652185
1961.4	-7.999592	4.68604	-4.453429	2.653946
1962.1	-7.974048	4.671727	-4.446543	2.65377
1962.2	-7.972878	4.679437	-4.441757	2.653594
1962.3	-7.970209	4.668647	-4.439475	2.653418
1962.4	-7.963876	4.688853	-4.439333	2.653242
1963.1	-7.959317	4.675881	-4.437187	2.65148
1963.2	-7.951941	4.652961	-4.434306	2.649715
1963.3	-7.965396	4.658816	-4.427777	2.647946
1963.4	-7.960272	4.653714	-4.414002	2.646175
1964.1	-7.936954	4.645538	-4.39974	2.645998
1964.2	-7.92301	4.635629	-4.379863	2.64582
1964.3	-7.911883	4.631469	-4.371019	2.645643
1964.4	-7.918471	4.637514	-4.362371	2.645465
1965.1	-7.916095	4.652727	-4.360062	2.64582
1965.2	-7.894338	4.658141	-4.349969	2.646175
1965.3	-7.889203	4.656464	-4.327738	2.646529
1965.4	-7.871711	4.655432	-4.313128	2.646884
1966.1	-7.860066	4.644139	-4.309959	2.64511
1966.2	-7.840754	4.644212	-4.308563	2.643334
1966.3	-7.837658	4.647137	-4.29928	2.641554
1966.4	-7.838668	4.653788	-4.289879	2.639771
1967.1	-7.836081	4.659936	-4.278718	2.639057
1967.2	-7.830063	4.661554	-4.274659	2.638343
1967.3	-7.82532	4.654018	-4.270247	2.637628
1967.4	-7.812695	4.644671	-4.266353	2.636912
1968.1	-7.792308	4.641605	-4.256872	2.633506
1968.2	-7.781042	4.625596	-4.24436	2.630089
1968.3	-7.763533	4.627113	-4.24817	2.626659
1968.4	-7.766507	4.621535	-4.243286	2.623218
1969.1	-7.748152	4.620802	-4.247602	2.618672
1969.2	-7.728209	4.634679	-4.24156	2.614106
1969.3	-7.724049	4.61451	-4.225354	2.609518
1969.4	-7.707266	4.603419	-4.221179	2.604909
1970.1	-7.691294	4.589637	-4.223849	2.60343
1970.2	-7.696625	4.593972	-4.214468	2.601949
1970.3	-7.683176	4.57555	-4.207761	2.600465
1970.4	-7.68114	4.576285	-4.213643	2.598979
1971.1	-7.671161	4.563018	-4.20528	2.599722
1971.2	-7.660023	4.528258	-4.199421	2.600465
1971.3	-7.659501	4.5376	-4.20086	2.601207
1971.4	-7.659155	4.54487	-4.19967	2.601949
1972.1	-7.655547	4.51949	-4.206896	2.599351
1972.2	-7.657851	4.500299	-4.203082	2.596746
1972.3	-7.651443	4.515703	-4.187756	2.594135
1972.4	-7.634623	4.531717	-4.157555	2.591516
1973.1	-7.606151	4.531126	-4.150146	2.589642
1973.2	-7.625179	4.54356	-4.149023	2.587764
1973.3	-7.620612	4.540858	-4.144428	2.585882
1973.4	-7.628435	4.601014	-4.130499	2.583997
1974.1	-7.737227	4.73435	-4.155976	2.586259
1974.2	-7.703093	4.796311	-4.174081	2.588516
1974.3	-7.68182	4.773173	-4.174542	2.590767
1974.4	-7.647267	4.730467	-4.180104	2.593013
1975.1	-7.67028	4.721725	-4.198524	2.594882
1975.2	-7.673598	4.726068	-4.157104	2.596746
1975.3	-7.694903	4.766653	-4.175806	2.598607
1975.4	-7.689864	4.767389	-4.168096	2.600465
1976.1	-7.673608	4.74403	-4.158282	2.600836
1976.2	-7.66296	4.723825	-4.158494	2.601207
1976.3	-7.660979	4.723013	-4.159304	2.601578
1976.4	-7.651936	4.728776	-4.157702	2.601949
1977.1	-7.657642	4.731314	-4.160647	2.60694
1977.2	-7.64901	4.725569	-4.154308	2.611906
1977.3	-7.646001	4.705353	-4.139049	2.616848
1977.4	-7.649135	4.709094	-4.137531	2.621766
1978.1	-7.657363	4.699367	-4.129727	2.626298
1978.2	-7.642133	4.673999	-4.11695	2.630809
1978.3	-7.637718	4.678699	-4.113466	2.6353
1978.4	-7.644944	4.711411	-4.107745	2.639771
1979.1	-7.634155	4.737268	-4.10542	2.646352
1979.2	-7.684886	4.848168	-4.110224	2.65289
1979.3	-7.690778	4.965428	-4.108253	2.659385
1979.4	-7.699923	5.018858	-4.108714	2.665838
1980.1	-7.727037	5.130968	-4.107552	2.683928
1980.2	-7.747409	5.149823	-4.130193	2.701697
1980.3	-7.768291	5.121161	-4.123072	2.719155
1980.4	-7.770349	5.108043	-4.106715	2.736314
1981.1	-7.746104	5.176053	-4.107763	2.743739
1981.2	-7.749401	5.162098	-4.113578	2.75111
1981.3	-7.752783	5.128757	-4.10358	2.758426
1981.4	-7.758903	5.126579	-4.10885	2.76569
1982.1	-7.748258	5.089216	-4.116735	2.776643
1982.2	-7.740548	5.016708	-4.109173	2.787477
1982.3	-7.760993	5.046284	-4.1106	2.798196
1982.4	-7.765389	5.018583	-4.112362	2.8088
1983.1	-7.734547	4.951649	-4.111137	2.816157
1983.2	-7.761149	4.973684	-4.105544	2.82346
1983.3	-7.738656	4.978372	-4.09589	2.83071
1983.4	-7.72975	4.947877	-4.079108	2.837908
1984.1	-7.743051	4.937271	-4.059039	2.847957
1984.2	-7.723525	4.926296	-4.050855	2.857906
1984.3	-7.719794	4.885598	-4.04159	2.867757
1984.4	-7.715204	4.886159	-4.039545	2.877512
1985.1	-7.721207	4.876889	-4.040108	2.882564
1985.2	-7.717261	4.896123	-4.021586	2.88759
1985.3	-7.71862	4.877967	-4.034639	2.892591
1985.4	-7.71905	4.865803	-4.03058	2.897568
1986.1	-7.702826	4.79969	-4.020278	2.898395
1986.2	-7.689694	4.598733	-4.006467	2.899221
1986.3	-7.685297	4.52283	-4.012002	2.900047
1986.4	-7.670334	4.488154	-4.016886	2.900872
1987.1	-7.685728	4.581026	-4.011549	2.913573
1987.2	-7.664967	4.594879	-4.030798	2.926114
1987.3	-7.682947	4.624788	-4.019994	2.9385
1987.4	-7.672442	4.617012	-4.00732	2.950735
1988.1	-7.678686	4.583605	-3.996853	2.959328
1988.2	-7.669295	4.572124	-3.997311	2.967847
1988.3	-7.675229	4.578095	-3.993513	2.976295
1988.4	-7.657843	4.557322	-3.985354	2.984671
1989.1	-7.670982	4.561117	-3.979249	2.990091
1989.2	-7.713211	4.683528	-3.988068	2.995482
1989.3	-7.675435	4.627944	-3.985719	3.000844
1989.4	-7.636929	4.584531	-3.980442	3.006177
1990.1	-7.672857	4.628345	-3.971611	3.013695
1990.2	-7.706511	4.617825	-3.969884	3.021156
1990.3	-7.710044	4.693574	-3.971754	3.028562
1990.4	-7.717076	4.829451	-3.978981	3.035914