Sex | Stroke | Distance | 1992 | 1996 | 2000 | 2004 | 2008 | 2012 | r-value | Effect size |
---|---|---|---|---|---|---|---|---|---|---|
Women | Freestyle | 50 m | 21.3 ± 2.5 | 23.6 ± 3.6 | 26.1 ± 3.6 | 24.3 ± 4.9 | 25.5 ± 7.2 | 26.8 ± 5.1 | 0.84 | 10.5 |
100 m | 20.1 ± 3.5 | 22.7 ± 3.7 | 25.7 ± 4.0 | 23.6 ± 4.0 | 24.1 ± 3.4 | 22.8 ± 3.5 | 0.45 | 1.63 | ||
200 m | 18.8 ± 3.8 | 21.3 ± 3.8 | 23.6 ± 4.6 | 20.8 ± 3.9 | 21.0 ± 2.7 | 22.3 ± 2.8 | 0.46 | 1.70 | ||
400 m | 20.6 ± 2.3 | 21.8 ± 5.0 | 21.0 ± 4.4 | 21.0 ± 1.3 | 21.0 ± 2.4 | 23.0 ± 2.7 | 0.56 | 2.54 | ||
800 m | 20.0 ± 1.8 | 23.8 ± 3.9 | 19.3 ± 3.2 | 22.0 ± 4.0 | 19.5 ± 3.5 | 21.7 ± 3.4 | -0.05 | 0.10 | ||
1500 m | - | - | - | - | - | - | ||||
Breaststroke | 100 m | 20.0 ± 3.9 | 21.2 ± 4.2 | 21.5 ± 5.8 | 22.8 ± 4.7 | 21.6 ± 3.3 | 21.8 ± 3.7 | 0.68 | 4.25 | |
200 m | 20.2 ± 4.5 | 19.6 ± 3.7 | 18.0 ± 2.7 | 22.1 ± 3.0 | 21.7 ± 2.9 | 23.1 ± 2.2 | 0.71 | 4.89 | ||
Backstroke | 100 m | 18.0 ± 2.3 | 20.0 ± 4.2 | 21.8 ± 4.5 | 22.5 ± 3.2 | 23.2 ± 2.8 | 21.5 ± 3.9 | 0.78 | 7.09 | |
200 m | 20.0 ± 2.4 | 22.5 ± 3.5 | 21.2 ± 3.0 | 21.1 ± 2.4 | 20.6 ± 4.1 | 21.7 ± 3.6 | 0.18 | 0.43 | ||
Butterfly | 100 m | 20.3 ± 3.2 | 20.5 ± 5.0 | 25.6 ± 4.7 | 24.2 ± 5.0 | 21.3 ± 2.4 | 22.8 ± 2.2 | 0.34 | 1.03 | |
200 m | 21.0 ± 4.4 | 20.2 ± 3.4 | 21.2 ± 4.5 | 23.7 ± 4.7 | 21.7 ± 3.8 | 22.0 ± 0.7 | 0.54 | 2.34 | ||
Medley | 200 m | 20.0 ± 1.8 | 22.7 ± 2.7 | 23.0 ± 3.1 | 21.0 ± 4.4 | 21.7 ± 2.4 | 23.0 ± 3.7 | 0.43 | 1.50 | |
400 m | 19.2 ± 1.4 | 21.0 ± 3.4 | 20.2 ± 3.2 | 20.1 ± 2.7 | 19.2 ± 3.3 | 20.8 ± 2.7 | 0.19 | 0.46 | ||
Men | Freestyle | 50 m | 24.8 ± 2.7 | 22.1 ± 1.9 | 25.0 ± 3.6 | 26.9 ± 3.6 | 25.0 ± 2.8 | 27.1 ± 3.6 | 0.65 | 3.71 |
100 m | 24.1 ± 2.7 | 22.5 ± 2.8 | 25.3 ± 2.4 | 24.4 ± 2.8 | 25.9 ± 4.0 | 23.8 ± 2.7 | 0.35 | 1.07 | ||
200 m | 21.5 ± 3.3 | 22.0 ± 3.3 | 22.6 ± 3.2 | 23.1 ± 2.5 | 22.2 ± 2.1 | 23.0 ± 2.8 | 0.75 | 6.00 | ||
400 m | 22.1 ± 3.9 | 21.5 ± 3.8 | 19.8 ± 4.8 | 22.1 ± 2.4 | 22.9 ± 2.8 | 23.6 ± 4.3 | 0.58 | 2.76 | ||
800 m | 22.1 ± 3.0 | 21.2 ± 2.4 | 21.5 ± 2.6 | 22.7 ± 3.2 | 22.5 ± 3.3 | 23.1 ± 3.1 | 0.73 | 5.40 | ||
1500 m | 22.1 ± 2.9 | 21.3 ± 2.5 | 21.5 ± 2.7 | 22.8 ± 3.1 | 22.5 ± 3.2 | 23.2 ± 3.0 | 0.73 | 5.41 | ||
Breaststroke | 100 m | 22.5 ± 3.5 | 23.8 ± 2.4 | 20.6 ± 2.0 | 23.1 ± 1.4 | 26.2 ± 1.7 | 26.3 ± 3.3 | 0.70 | 4.66 | |
200 m | 22.3 ± 2.4 | 24.6 ± 3.0 | 23.0 ± 2.5 | 20.5 ± 2.6 | 23.6 ± 2.8 | 25.0 ± 2.9 | 0.25 | 0.66 | ||
Backstroke | 100 m | 23.2 ± 2.6 | 24.3 ± 2.2 | 22.8 ± 1.8 | 22.6 ± 3.9 | 23.5 ± 1.2 | 25.7 ± 2.7 | 0.44 | 1.57 | |
200 m | 21.6 ± 1.0 | 23.7 ± 2.0 | 23.5 ± 4.7 | 22.7 ± 2.0 | 24.7 ± 3.3 | 22.1 ± 3.1 | 0.22 | 0.56 | ||
Butterfly | 100 m | 24.0 ± 2.6 | 22.8 ± 2.6 | 21.0 ± 5.1 | 24.7 ± 3.9 | 24.1 ± 2.2 | 25.1 ± 2.9 | 0.47 | 1.77 | |
200 m | 21.2 ± 3.2 | 21.6 ± 1.8 | 23.1 ± 4.1 | 22.7 ± 4.4 | 23.6 ± 1.7 | 24.1 ± 3.4 | 0.95 | 38.0 | ||
Medley | 200 m | 21.6 ± 3.2 | 22.7 ± 1.0 | 25.8 ± 2.0 | 20.6 ± 2.0 | 23.5 ± 1.1 | 25.5 ± 3.7 | 0.42 | 1.44 | |
400 m | 23.3 ± 1.1 | 24.3 ± 2.4 | 21.2 ± 3.0 | 20.8 ± 1.9 | 23.4 ± 2.3 | 22.2 ± 4.4 | -0.35 | 1.07 |