cup_step,model_cm,uk,us,eu_fr,au_nz,japan_approx
0,0.0,AA,AA,AA,AA,A
1,2.5,A,A,A,A,B
2,5.1,B,B,B,B,C
3,7.6,C,C,C,C,D
4,10.2,D,D,D,D,E
5,12.7,DD,DD,E,DD,F
6,15.2,E,DDD,F,E,G
7,17.8,F,G,G,F,H
8,20.3,FF,H,H,G,I
9,22.9,G,I,I,H,
10,25.4,GG,J,J,HH,
11,27.9,H,K,K,,
12,30.5,HH,L,L,,
13,33.0,J,M,M,,
14,35.6,JJ,N,N,,
15,38.1,K,O,O,,