444 VALUATION, DEPRECIATION AND THE RATE-BASE 
TABLE 31. EXPECTANCY AND REMAINING VALUE OF ANY 
ARTICLE WHOSE REPLACEMENT COST IS $100 (Continued) 
PROBABLE LIFE 50 YEARS 
50 YEARS 50 YEARS 
Remaining value. 
Beginning Expectancy 
of year. years. 
4 per cent per 5 per cent per 6 per cent per = 7 per cent per 
annum. annum. annum. annum. 
16 37-350 $89.60 $92.00 $93.80 $95.30 
17 36.75 88.80 91.30 93.30 94.90 
18 | 36.00 88.00 | 90.60 92.80 94.50 
19 35-30 87.20 90.00 92.20 94.00 
20 34.60 86.40 89.30 91.70 93.50 
21 33.90 85.60 88.60 9I.IO 93.10 
22 33.20 84.70 | 87.90 00.50 92.60 
23 32.50 83.80 87.10 89.80 92.00 
24 31.80 82.90 86.30 89.20 91.50 
25 31.13 82.10 85.60 88.50 90.90 
26 30.50 81.20 84.80 87.90 90.40 
27 29.90 80.30 84.10 87.20 89.80 
28 29.30 79.50 83.30 86.60 89.20 
29 28.70 78.60 82.50 85.90 88.70 
30 28.10 77.770 81.70 85.20 88.00 
31 27.50 76.80 80.90 84.40 87.40 
36 24.85 72.50 77 .00 80.90 84.20 
41 22.145 68.10 72.90 77-30 80.80 
46 20.35 64.00 69.00 73.40 77.40 
5I 18.50 60.00 65.10 69.70 73.90 
oI 14.80 51.20 56.30 61.10 65.50 
7y I1.10 41.10 | 45.80 50.30 54.60 
81 7.50 29.60 | 33.50 37.40 41.20 
91 3.90 16.50 19.00 21.50 24.00 
99 1.00 4.50 5.20 6.00 6.80 
PROBABLE LIFE 60 YEARS 
60 YEARS 60 YEARS 
60.00 100.00 100.00 100.00 100.00 
59.I0 99.60 99.70 99.80 99.90 
58.153 99.20 99.50 99.60 99.80 
: 57-25 98.80 99.20 99.50 99.60 
2 56.35 98.40 98.90 99.30 99.50 
5 55.45 97.90 98.60 99.10 99.40 
7 54.60 97.50 98.30 98.80 99.20 
53.75 97.10 98.00 98.60 99.10 
52.90 96.60 97.70 98.40 98.90 
J 52.05 06.20 97.30 08.20 98.80