how many times does the unites states appear in the nations column?
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col : rank | name | nation | cp | fp | points | placings row 1 : 1 | beatrix schuba | austria | 1 | 7 | 2763.0 | 10 row 2 : 2 | julie lynn holmes | united states | 2 | 5 | 2697.3 | 24.5 row 3 : 3 | karen magnussen | canada | 4 | 2 | 2697.7 | 27 row 4 : 4 | janet lynn | united states | 5 | 1 | 2680.0 | 34 row 5 : 5 | rita trapanese | italy | 3 | 8 | 2623.6 | 47.5 row 6 : 6 | sonja morgenstern | east germany | 9 | 3 | 2606.6 | 52 row 7 : 7 | zsuzsa almássy | hungary | 6 | 4 | 2599.9 | 57 row 8 : 8 | charlotte walter | switzerland | 8 | 14 | 2480.7 | 86 row 9 : 9 | christine errath | east germany | 13 | 6 | 2493.5 | 83 row 10 : 10 | suna murray | united states | 14 | 9 | 2475.0 | 91 row 11 : 11 | elena alexandrova | soviet union | 10 | 13 | 2450.5 | 103 row 12 : 12 | patricia ann dodd | united kingdom | 7 | 16 |  | 100 row 13 : 13 | kazumi yamashita | japan | 12 | 11 |  | 116 row 14 : 14 | ludmila bezáková | czechoslovakia | 11 | 15 |  | 122 row 15 : 15 | jean scott | united kingdom | 15 | 10 |  | 132 row 16 : 16 | diane hall | canada | 19 | 12 |  | 132 row 17 : 17 | anita johansson | sweden | 16 | 18 |  | 145 row 18 : 18 | judith bayer | west germany | 20 | 17 |  | 159 row 19 : 19 | ruth hutchinson | canada | 17 | 20 |  | 168 row 20 : 20 | sonja balun | austria | 22 | 19 |  | 177 row 21 : 21 | joëlle cartaux | france | 18 | 22 |  | 188 row 22 : 22 | cinzia frosio | italy | 21 | 21 |  | 197
how many times does the unites states appear in the nations column?
Rank Name Nation CP FP Points Placings
1 Beatrix Schuba Austria 1 7 2763.0 10
2 Julie Lynn Holmes United States 2 5 2697.3 24.5
3 Karen Magnussen Canada 4 2 2697.7 27
4 Janet Lynn United States 5 1 2680.0 34
5 Rita Trapanese Italy 3 8 2623.6 47.5
6 Sonja Morgenstern East Germany 9 3 2606.6 52
7 Zsuzsa Almássy Hungary 6 4 2599.9 57
8 Charlotte Walter Switzerland 8 14 2480.7 86
9 Christine Errath East Germany 13 6 2493.5 83
10 Suna Murray United States 14 9 2475.0 91
11 Elena Alexandrova Soviet Union 10 13 2450.5 103
12 Patricia Ann Dodd United Kingdom 7 16 100
13 Kazumi Yamashita Japan 12 11 116
14 Ludmila Bezáková Czechoslovakia 11 15 122
15 Jean Scott United Kingdom 15 10 132
16 Diane Hall Canada 19 12 132
17 Anita Johansson Sweden 16 18 145
18 Judith Bayer West Germany 20 17 159
19 Ruth Hutchinson Canada 17 20 168
20 Sonja Balun Austria 22 19 177
21 Joëlle Cartaux France 18 22 188
22 Cinzia Frosio Italy 21 21 197
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