Table 9a. Estimated observation SDs.
Index	Fleet number	Age	Estimate
1	1	1	0.82900
2	1	2	0.29538
3	1	3	0.04979
4	1	4	0.04979
5	1	5	0.04979
6	1	6	0.04979
7	1	7	0.04979
8	2	1	0.09213
9	2	2	0.25864
10	2	3	0.25864
11	2	4	0.25864
12	2	5	0.25864