For fun, here is my earnings from the IRAS statements since I was 35

35 58,148
36 120,086
37 164,961
38 183,002
39 204,204
40 453,470
41 380,093
42 385,727
43 621.284
44 815,212
45 906,064
46 654,075
47 456,108
48 333,701
49 407,790
50 683,410
51 769,832
52 785,233
53 782,908

Single income. Banker. Total assets $16.3m Liabilities $3.1m. Bungalow, Sports Car, SUV