Table 9a. Estimated observation SDs.
Index	Fleet number	Age	Estimate
1	1	1	0.72062
2	1	2	0.25118
3	1	3	0.07936
4	1	4	0.07936
5	1	5	0.07936
6	1	6	0.07936
7	1	7	0.07936
8	2	1	0.61899
9	2	2	0.26498
10	2	3	0.26498
11	2	4	0.26498
12	2	5	0.26498