I calculated with 0.0001 in every line further and yes, the most often anion is the di hydrogen citrate: I calculate 20% tri hydrogen citrate, 74% di hydrogen citrate, 6% mono hydrogen citrate and almost nothing of the zero hydrogen citrate.
This means the ratios of the anions depend on the pH and only indirectly on the citric acid concentration. So I could change the ratios of the anions both by adding more or less citric acid but also by adding a strong acid or a strong base. So, if I have a pH 4 citric acid solution (with mainly di hydrogen citrate) and add HCl to it until the pH is 3, I will have new ratios of anions (I calculate ca. 73% three hydrogen citrate, 27% di hydrogen citrate and almost nothing of the others).
Is this right generally? (You don't need to check the exact numbers of course)