Var x	Var y	Var z
Observations	Price	Consum.	Income
 1	 101.0   99.2	 96.7
 2	 100.1   99.0	 98.1
 3	 100.0	100.0	100.0
 4	  90.6	111.6	104.9
 5	  86.5	122.2	104.9
 6	  89.7	117.6	109.5
 7	  90.6	121.1	110.8
 8	  82.8	136.0	112.3
 9	  70.1	154.2	109.3
10	  65.4	153.6	105.3
11	  61.3	158.5	101.7
12	  62.5	140.6	 95.4
13	  63.6	136.2	 96.4
14	  52.6	168.0	 97.6
15	  59.7	154.3	102.4
16	  59.5	149.0	101.6
17	  61.3	165.5	103.8