From: Investigating probabilistic sampling approaches for large-scale surveys in software engineering
Stratum | USA | IND | UK | CAN | AUS | BRA | NET | SWE | FRA | CHI |
---|---|---|---|---|---|---|---|---|---|---|
1 | 37,557 | 9,337 | 11,346 | 4,355 | 3,878 | 3,228 | 3,065 | 2,509 | 2,305 | 971 |
2 | 1547 | 535 | 471 | 274 | 238 | 199 | 131 | 115 | 117 | 90 |
3 | 2,236 | 1,811 | 2,253 | 351 | 488 | 486 | 374 | 244 | 322 | 74 |
4 | 939 | 328 | 406 | 177 | 89 | 155 | 108 | 77 | 77 | 38 |
5 | 18,692 | 14,942 | 3,743 | 2,115 | 1,192 | 606 | 814 | 644 | 456 | 941 |
6 | 3,132 | 1,069 | 235 | 132 | 43 | 25 | 20 | 57 | 16 | 245 |
7 | 7,723 | 2,902 | 1,501 | 683 | 407 | 155 | 316 | 353 | 250 | 202 |
8 | 2,371 | 1,129 | 353 | 323 | 120 | 160 | 280 | 67 | 128 | 79 |