Table 9a. Estimated observation SDs.
Index	Fleet number	Age	Estimate
1	1	1	0.74987
2	1	2	0.26703
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	0.19004
9	2	2	0.25833
10	2	3	0.25833
11	2	4	0.25833
12	2	5	0.25833