Aņo	Buques-tanque98	Auto-tanque	Carros-tanque
1972	430825	25821	127764
1973	458333	41760	136960
1974	550145	51945	149566
1975	578462	55239	156944
1976	644713	67158	179672
1977	779541	85095	194472
1978	813465	100250	195840
1979	989205	130443	199088
1980	1081711	160030	193821
1981	1079485	188966	170254
1982	1054958	209475	158836
1983	1162863	201974	149834
1984	1090489	213067	120327
1985	1090489	212985	114260
1986	1090489	256300	120000
1987	1040168	254300	121200
1988	1089704	253600	108300
1989	1187432	260500	106100
1990	1187432	214500	116900
1991	1187432	185700	81000
1992	905789	227600	66900
1993	n.d.	n.d.	n.d.
1994	n.d.	n.d.	n.d.
1995	1067628	207900	84100