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#	Keyword	Results	Change	Check Date
10	how is land formed after mining	38 100 000	0	2016-04-26
12	above ground gem mining places in grove city ohio	752 000	0	2015-06-21
12	spreadsheet for earthwork grading	759 000	0	2014-05-01
15	reclama site	140 000	0	2016-01-22
23	earthwork spreadsheet	55 000	-3	2015-05-27
23	mine safety laws	3 060 000	0	2014-10-01
27	history of coal mining techniques	1 270 000	0	2014-09-26
30	mahoning county cpr refresher course	1 630	0	2014-05-02
34	plasticity of clay and structure	380 000	0	2015-06-23
36	coal in swamps	416 000	0	2016-01-19
41	mine ventilation xls	1 030 000	0	2014-08-25
45	mineral water directory	1 970 000	0	2015-03-09
48	formula calcolo imu xls	78 800	0	2014-04-25
50	ohio mowing contracts	559 000	0	2015-11-06