Butler County Historical Production Figures

YEAR

 SURFACE

 UNDERGROUND

 TOTAL

1945               60,000             219,888                      279,888
1947               87,000             190,700                      277,700
1948               36,000               90,076                      126,076
1949               63,900             191,912                      255,812
1950               61,698             246,313                      308,011
1951                 9,852               97,933                      107,785
1953                 5,861               92,934                        98,795
1954                 1,887               98,176                      100,063
1955                 7,407             110,981                      118,388
1956                 2,246             129,376                      131,622
1957                 2,160             121,471                      123,631
1958               80,119               93,048                      173,167
1959             140,372               74,710                      215,082
1960             162,270               58,212                      220,482
1961             210,949               35,322                      246,271
1962             144,826               38,721                      183,547
1963             163,637               40,935                      204,572
1964             140,733               46,349                      187,082
1965               78,638               92,000                      170,638
1966             119,521               60,441                      179,962
1967               80,729               60,500                      141,229
1968             119,889               41,000                      160,889
1969             162,530               35,500                      198,030
1970             179,542               48,417                      227,959
1971             161,014               64,497                      225,511
1972             133,135               71,131                      204,266
1973               68,549                 5,845                        74,394
1974             201,065               52,412                      253,477
1975             698,960               41,772                      740,732
1976             820,096               54,021                      874,117
1977             996,591               21,490                   1,018,081
1978           1,292,215                 6,955                   1,299,170
1979           1,503,119                        -                   1,503,119
1980           1,460,361               11,031                   1,471,392
1981           1,956,370               36,691                   1,993,061
1982           1,748,447               18,517                   1,766,964
1983           1,229,543               22,194                   1,251,737
1984           1,533,717               30,779                   1,564,496
1985           1,671,416               20,000                   1,691,416
1986           1,751,959                        -                   1,751,959
1987           2,064,618                        -                   2,064,618
1988           1,597,585                        -                   1,597,585
1989           1,037,424                        -                   1,037,424
1990           1,226,708                        -                   1,226,708
1991             402,276                        -                      402,276
1992               50,194                        -                        50,194
1993               75,345                        -                        75,345
1994               25,525                        -                        25,525
1995             170,716                        -                      170,716
1996             233,289                        -                      233,289
1997             118,854                        -                      118,854
*NOTE:  

Source: