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Washington Sea Otter Survey Results, 1977-2001 |
| Survey Year | Independents | Pups | Total |
| 1977 | 15 | 4 | 19 |
| 1978 | |||
| 1979 | |||
| 1980 | |||
| 1981 | 35 | 1 | 36 |
| 1982 | |||
| 1983 | 48 | 4 | 52 |
| 1984 | |||
| 1985 | 60 | 5 | 65 |
| 1986 | |||
| 1987 | 89 | 5 | 94 |
| 1988 | |||
| 1989 | 198 | 10 | 208 |
| 1990 | 197 | 15 | 212 |
| 1991 | 259 | 17 | 276 |
| 1992 | 283 | 30 | 313 |
| 1993 | 283 | 24 | 307 |
| 1994 | 325 | 35 | 360 |
| 1995 | 347 | 57 | 404 |
| 1996 | 358 | 72 | 430 |
| 1997 | 440 | 62 | 502 |
| 1998 | 389 | 44 | 433 |
| 1999 | 554 | 50 | 604 |
| 2000 | 504 | 0 | 504 |
| 2001 | 510 | 45 | 555 |
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