año	oleoductos	gasoductos	poliductos	petroquímicos	
1971	  1 795.0	  4 300.1	  3 681	   473.1	
1972	  1 795.0	  4 544.5	  3 423	   473.1	
1973	  1 955.7	  4 950.2	  3 890	   473.0	
1974	  2 480.7	  5 294.4	  4 208	   473.0	
1975	  2 770.2	  5 418.9	  4 956	   529.0	
1976	  3 620.4	  5 874.3	  4 654	   531.7	
1977	  4 338.9	  5 637.2	  4 673	   555.7	
1978	  4 384.0	6768..3	  4 825	   939.7	
1979	  3 962.2	  8 434.6	  4 421	  1 676.0	
1980	  5 134.2	  9 046.4	  5 199	  1 676.0	
1981	  5 584.2	  11 269.5	  6 006	  2 002.8	
1982	  13 088.8	  19 248.4	  6 190	  2 521.1	
1983	  11 915.2	  21 983.8	  5 776	  2 537.5	
1984	  4 074.2	  12 575.6	  6 269	  1 510.9	
1985	  4 381.0	  12 788.0	  6 865	  1 340.7	
1986	  4 381.0	  13 254.0	  8 345	  1 351.7	
1987	  4 440.0	  13 136.0	  8 251	  1 387.4	
1988	  4 817.0	  13 165.7	  9 652	  1 414.2	
1989	  5 142.0	  13 165.7	  9 652	  1 414.2	
1990	  5 049.0	  12 953.7	  9 523	  1 349.1	
1991	  5 018.0	  12 009.7	  9 655	  1 357.1	
1992	5 648.6	12 582.4	  11 755	  1 569.5