|
| TABLE 7 | ||||||||
| U.S. PRODUCTION OF SODIUM COMPOUNDS, BY MONTH1 | ||||||||
| (Thousand metric tons) | ||||||||
| 2005 | 2006 | |||||||
| Wyoming | Wyoming | |||||||
| Soda ash | trona2 | Soda ash | trona2 | |||||
| January | 925 | 1,440 | 946 | 1,190 | ||||
| February | 858 | 1,350 | 801 | 1,270 | ||||
| March | 894 | 1,410 | 952 | 1,470 | ||||
| April | 928 | 1,360 | 874 | 1,290 | ||||
| May | 931 | 1,510 | 909 | 1,190 | ||||
| June | 932 | 1,550 | 910 | 1,340 | ||||
| July | 955 | 1,550 | 952 | 1,430 | ||||
| August | 893 | 1,380 | 926 | 1,500 | ||||
| September | 923 | 1,480 | 859 | 1,480 | ||||
| October | 898 | 1,320 | 955 | 1,560 | ||||
| November | 895 | 1,310 | 930 | 1,480 | ||||
| December | 922 | 1,360 | 946 | 1,490 | ||||
| Total | 11,000 | 17,000 | 11,000 | 16,700 | ||||
| 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