A Novel Method for Evaluating Dredging Productivity Using a Data Envelopment Analysis-Based Technique

Table 6

Daily dredging productivity by the traditional dredging productivity method.

Work day	Input	Output	Output/Input
	Convert to single input	Daily dredging (M^3)	Daily dredging productivity
1	0.386	79	2816.346
2	0.458	175	6405.818
3	0.617	385	11019.975
4	0.504	235	8231.639
5	0.461	178	8273.882
6	0.473	194	7960.192
7	0.593	353	10342.529
8	0.433	142	4816.154
9	0.473	194	8890.962
10	0.480	203	9519.431
11	0.547	292	8879.834
12	0.547	292	9653.186
13	0.472	193	6966.549
14	0.472	193	11371.493
15	0.550	296	9232.727
16	0.528	267	8652.912
17	0.534	275	8680.170
18	0.536	277	8681.754
19	0.555	302	9328.361
20	0.592	351	10233.803
21	0.649	427	11393.279
22	0.661	443	11704.605
23	0.636	409	11271.132
24	0.561	310	9687.730
25	0.578	333	10094.626
26	0.598	359	10523.194
27	0.661	443	11719.725
28	0.586	343	10257.749
29	0.631	403	11190.684
30	0.638	412	11303.088
31	0.646	423	11445.158
32	0.608	372	10714.713
33	0.645	421	11439.483
34	0.646	423	11466.823
35	0.645	422	11440.000
36	0.655	435	11628.208
37	0.657	437	11612.042
38	0.666	449	11774.881
39	0.666	449	11783.891
40	0.667	450	11799.000
41	0.655	434	11598.889
42	0.656	436	11622.402
43	0.648	426	11491.402
44	0.652	431	11559.582
45	0.659	440	11694.897
46	0.657	437	11636.401
47	0.616	383	10883.100
48	0.654	433	11593.975
49	0.656	436	11636.120
50	0.661	443	11724.261
51	0.655	435	11622.104
52	0.657	437	11636.401
53	0.654	433	11589.386
54	0.652	431	10354.564
55	0.661	443	11712.165
56	0.664	447	11667.777
57	0.333	10	1200.000
58	0.333	10	1200.000
59	0.555	303	9540.737
60	0.423	129	5350.841
61	0.356	40	1926.638
62	0.517	252	10020.000
63	0.614	380	10838.667
64	0.595	355	10445.656
65	0.555	303	9540.737
66	0.423	129	5350.841