Table:
depreciation rate
expected life

ex post simultaneous estimation
ex ante declining-balance rate from simultaneous estimation
ex post simultaneous estimation
ex ante survey

rate
years

asset description and code

plants for manufacturing, processing and assembling goods
0.072
0.082
29.2
25.4

warehouses, refrigerated storage, freight terminals
0.064
0.082
33.0
25.4

maintenance garages, workshops, equipment storage facilities
0.066
0.077
31.8
27.2

office buildings
0.067
0.078
31.4
27.0

shopping centres, plazas, malls, stores
0.156
0.091
14.9
25.8

autres constructions industrielles et commerciales
0.096
0.095
21.8
22.1

telephone and cablevision lines, underground and marine cables
0.137
0.164
19.4
16.2

communication towers, antennae, earth stations
0.099
0.133
27.0
20.1

mean, all assets
0.097
0.092
25.6
25.1

Statement: the ex post estimated expected discard age for shopping centres is about 15 years.
Question: how many years is the ex post estimated expected discard age for shopping centres?
Answer: [14.9]