|  Callsign structure | # | Callsign structure, C - char, D - digit | Callsigns | % | QSOs | % | 
|---|
 | 1 | C C D C C  | 81 | 24.18 % |  | 105 | 24.19 % |  |  | 2 | C C D C C C  | 57 | 17.01 % |  | 66 | 15.21 % |  |  | 3 | C C D C  | 40 | 11.94 % |  | 50 | 11.52 % |  |  | 4 | C C D C C / C  | 39 | 11.64 % |  | 45 | 10.37 % |  |  | 5 | C C D C / C  | 29 | 8.66 % |  | 40 | 9.22 % |  |  | 6 | C D C C  | 18 | 5.37 % |  | 27 | 6.22 % |  |  | 7 | C C D C C C / C  | 13 | 3.88 % |  | 16 | 3.69 % |  |  | 8 | C D D C / C  | 12 | 3.58 % |  | 25 | 5.76 % |  |  | 9 | C D C C C  | 11 | 3.28 % |  | 11 | 2.53 % |  |  | 10 | C D C C / C  | 9 | 2.69 % |  | 12 | 2.76 % |  |  | 11 | C D C C C / C  | 9 | 2.69 % |  | 10 | 2.30 % |  |  | 12 | D C D C C  | 6 | 1.79 % |  | 6 | 1.38 % |  |  | 13 | C D D C  | 4 | 1.19 % |  | 5 | 1.15 % |  |  | 14 | D C D C / C  | 1 | 0.30 % |  | 1 | 0.23 % |  |  | 15 | C C / C D C C  | 1 | 0.30 % |  | 1 | 0.23 % |  |  | 16 | C C / C C D C C  | 1 | 0.30 % |  | 1 | 0.23 % |  |  | 17 | C C D C / D  | 1 | 0.30 % |  | 1 | 0.23 % |  |  | 18 | C D D C C  | 1 | 0.30 % |  | 1 | 0.23 % |  |  | 19 | C D D C C C / C  | 1 | 0.30 % |  | 2 | 0.46 % |  |  | 20 | C C D C C / C C C  | 1 | 0.30 % |  | 1 | 0.23 % |  |  
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