Table:
text: 1980–81 Segunda División
Final table
Final table
Position_ Club Played Points Wins Draws Losses Goals_for Goals_against Goal_Difference
1 CD Castellón 38 45+7 15 15 8 45 33 +12
2 Cádiz CF 38 45+7 19 7 12 55 37 +18
3 Racing de Santander 38 45+7 18 9 11 48 40 +8
4 Elche CF 38 45+7 17 11 10 55 44 +11
5 Rayo Vallecano 38 45+7 15 15 8 37 23 +14
6 CD Málaga 38 42+4 14 14 10 47 45 +2
7 CE Sabadell FC 38 42+4 16 10 12 45 44 +1
8 Deportivo Alavés 38 39+1 15 9 14 49 35 +14

Question: What is the lowest number of defeats for club Cádiz cf in Segunda División 1980–81?