Figure 1.1, page 321.
use https://stats.idre.ucla.edu/stat/stata/examples/alda/data/teachers, clear
tabulate t censor
| censor
t | 0 1 | Total
-----------+----------------------+----------
1 | 456 0 | 456
2 | 384 0 | 384
3 | 359 0 | 359
4 | 295 0 | 295
5 | 218 0 | 218
6 | 184 0 | 184
7 | 123 280 | 403
8 | 79 307 | 386
9 | 53 255 | 308
10 | 35 265 | 300
11 | 16 241 | 257
12 | 5 386 | 391
-----------+----------------------+----------
Total | 2207 1734 | 3941
sort censor
histogram t, by(censor) freq discrete

