Here's a B
It doesn't look a whole lot better.
HZ,current(RMS)ma
1 turn, 5 turns
50000,50,50
100000,48.6,48.7
200000,47.6
300000,48.1
400000,49.1
500000,49.6
600000,49.8
700000,48.8
800000,48.7,51.5
900000,48
1000000,47,50.2
1300000,44,52.2
2000000,37.7,42.6
2300000,35.6,40.9
2500000,34.6,40
3000000,33,38.2
3500000,31.9,37.0
4000000,33,38.4
4500000,31.2,38.4
5000000,23.5,31.7
6000000,10.7,13.1
Perhaps you can plot it with yours to compare. I only used a single pass through probe. Have redone some with 5 turns and it looks better. Don't understand why it would matter as I rebased 50ma @ 50kHz,