Do you want to show your graph only that is starting from x-axis right?
In that case select the fixed axis and select starting point as 0 so that you can see only the points starting from 0.
Thank you for your quick answer. Unfortunately, it seems that I can't do this because I have various countries in my filters and some have negative figures while others have positive values. So, it I decide to see only the points starting from zero, it will not show me the results for all the country when I change of country in the filters..
I still do not know why it is displayed like this.
Thank you in advance,