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<br />
<br />Table 1. Surveyed bank cubic yards (BCY) moved by draglines and [he
<br />number of buckets (on recorded prime swings) required to move
<br />the period 1979 through October 1982.
<br /> Recorded Surveyed
<br />Year Month Prime Swings Bank Cubic Yards
<br />1979 January 44,172 1,250,832
<br /> February 56,698 1,267,524
<br /> March 51,194 1,333,396
<br /> April 67,382 1,692,639
<br /> May 61,890 1,236,480
<br /> June 64,795 1,493,719
<br /> July 83,626 2,193,284
<br /> August 70,377 2,286,117
<br /> September 66,941 1,544,264
<br /> October 83,445 1,702,153
<br /> November 60,899 1,468,426
<br /> December 66,912 1,568,019
<br />1980 January 82,519 2,187,745
<br /> February 75,469 1,601,135
<br /> March 66,158 1,385,136
<br /> April 61,063 1,544,572
<br /> May 50,734 1,142,6f1
<br />' June 41,076 879,286
<br /> July 59,259 1,485,396
<br /> August 44,019 1,191,005
<br /> September 42,211 1,179,565
<br /> October 66,015 1,543,290
<br /> November 40,177 927,748
<br /> December 59,123 1,261,479
<br />1981 January 57,931 1,416,957
<br /> February 61,684 1,532,155
<br /> March 60,526 1,338,922
<br /> April 77,681 1,682,971
<br /> May 57,988 1,292,425
<br /> June 55,895 1,288,625
<br /> July 62,459 1,397,819
<br /> August 54,388 1,381,797
<br /> September 30,963 741,758
<br /> October 47,027 ],132,197
<br /> 2,032,756 48,571,447
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