| Year |
Event |
Status |
Participants |
NOCs |
| 1968 |
200 metres Butterfly, Women |
Olympic |
21 |
16 |
| 1972 |
200 metres Butterfly, Women |
Olympic |
24 |
17 |
| 1976 |
200 metres Butterfly, Women |
Olympic |
32 |
20 |
| 1980 |
200 metres Butterfly, Women |
Olympic |
21 |
14 |
| 1984 |
200 metres Butterfly, Women |
Olympic |
29 |
18 |
| 1988 |
200 metres Butterfly, Women |
Olympic |
28 |
21 |
| 1992 |
200 metres Butterfly, Women |
Olympic |
32 |
23 |
| 1996 |
200 metres Butterfly, Women |
Olympic |
34 |
28 |
| 2000 |
200 metres Butterfly, Women |
Olympic |
36 |
27 |
| 2004 |
200 metres Butterfly, Women |
Olympic |
32 |
26 |
| 2008 |
200 metres Butterfly, Women |
Olympic |
34 |
26 |
| 2012 |
200 metres Butterfly, Women |
Olympic |
28 |
21 |
| 2016 |
200 metres Butterfly, Women |
Olympic |
27 |
20 |
| 2020 |
200 metres Butterfly, Women |
Olympic |
16 |
13 |
| 2024 |
200 metres Butterfly, Women |
Olympic |
19 |
14 |