Table 3.--U.S. Exports of soda ash
                     (Thousand metric tons and thousand dollars)
                 ____________________________________________________

                                           Disodium carbonate1/
                      Year             ___________________________

                                        Quantity           Value2/
                 ____________________________________________________

                 1970----------              305            12,007
                 1971----------              396            15,400
                 1972----------              435            18,914
                 1973----------              386            16,064
                 1974----------              512            34,156
                 1975----------              480            45,822
                 1976----------              585            47,004
                 1977----------              689            52,943
                 1978----------              707            61,454
                 1979----------              904            86,663
                 1980----------              992           121,945
                 1981----------              953           121,107
                 1982----------            1,006           140,616
                 1983----------            1,484           154,584
                 1984----------            1,495           160,774
                 1985----------            1,584           173,937
                 19863/--------            1,859           241,238
                 19873/--------            2,018           253,200
                 19883/-------             2,238           286,945
                 1989----------            2,648           365,469
                 1990----------            2,392           346,693
                 ____________________________________________________

                   1/Beginning in 1989, export data were reclassified
                 under the Harmonized Commodity Description and Coding
                 System (HTS Code No. 2836200000). Prior years were
                 classified under Schedule B No. 4208400.
                   2/Free alongside ship (f.a.s.) value at U.S. ports.
                   3/Adjusted by the U.S. Bureau of Mines to account for
                 discrepancies in data.

                   Source: Bureau of the Census, as adjusted by the U.S.
                 Bureau of Mines.