438 VALUATION, DEPRECIATION AND THE RATE-BASE 
TABLE 31. EXPECTANCY AND REMAINING VALUE OF ANY 
ARTICLE WHOSE REPLACEMENT COST IS $100 (Continued) 
PROBABLE LIFE 15 YEARS 
15 YEARS 15 YEARS 
Remaining value. 
Beginning Expectancy ; 
of year. years. 
4 per cent per 5 per cent per 6 per cent per 4 per cent per 
annum. annum. annum. annum. 
15.00 $100.00 $100.00 $100.00 $100.00 
14.10 95.50 95.80 96.10 96.40 
13.20 90.90 91.50 92.10 92.60 
12.40 86.60 87.40 88.30 89.00 
= 11.65 82.40 83.50 84.50 85.50 
10.90 78.20 79.50 80.70 81.80 
10.15 73.90 75.30 | 76.70 78.00 
9.45 69.60 71.10 72.60 74.00 
“ 8.85 65.90 67.50 69.10 70.60 
10 8.25 62.10 63.80 65.50 67.10 
II ES 58.90 60.60 62.30 64.00 
12 wi. 2% 55.60 57.40 59.I0 60.80 
13 6.75 52.30 54.00 55.80 57.50 
14 6.30 49.20 5I.00 52.70 54.40 
16 5.90 46.40 48.20 49.90 51.60 
16 5.55 44.00 45.708 47 .40 49.10 
17 5.20 AI.50 43.20 44.80 46.50 
18 4.85 38.90 40.60 42.20 43.80 
19 4.50 36.40 37.90 39.50 41.10 
20 4.15 33.70 35.30 36.80 38.40 
21 3.80 31.10 32.60 34.00 35.50 
22 3-45 28.40 29.80 31.20 32.60 
23 3.10 25.70 27.00 28.30 29.60 
24 2.75 22.90 24.20 25.40 26.60 
26 2.40 20.20 21.20 22.30 23.40 
26 2.05 17.40 18.30 19.30 20.30 
27 1.70 14.50 15.30 16.10 17.00 
28 v.35 11.60 12.20 12.90 13.60 
29 1.00 8.60 9.20 9.70 10.30