|
| TABLE 6 | ||||||||
| U.S. PRODUCTION OF SODIUM COMPOUNDS, BY MONTH1 | ||||||||
| (Thousand metric tons) | ||||||||
| 2006 | 2007 | |||||||
| Wyoming | Wyoming | |||||||
| Soda ash | trona2 | Soda ash | trona2 | |||||
| January | 946 | 1,190 | 864 | 1,420 | ||||
| February | 801 | 1,270 | 880 | 1,400 | ||||
| March | 952 | 1,470 | 962 | 1,590 | ||||
| April | 874 | 1,290 | 880 | 1,450 | ||||
| May | 909 | 1,190 | 950 | 1,460 | ||||
| June | 910 | 1,340 | 926 | 1,310 | ||||
| July | 952 | 1,430 | 985 | 1,500 | ||||
| August | 926 | 1,500 | 971 | 1,490 | ||||
| September | 859 | 1,480 | 890 | 1,110 | ||||
| October | 955 | 1,560 | 920 | 1,450 | ||||
| November | 930 | 1,480 | 903 | 1,450 | ||||
| December | 946 | 1,490 | 936 | 1,510 | ||||
| Total | 11,000 | 16,700 | 11,100 | 17,200 | ||||
| 1Data are rounded to no more than three significant digits; may | ||||||||
| not add to totals shown. | ||||||||
| 2Includes solution-mined trona. | ||||||||
Source: United States Geological Survey Mineral Resources Program