See the new French election poll, it’s similar to the old French election poll

Macron still seen as the winner in Elabe poll
– Macron 23.0% (+0.5%)
– Le Pen 22.5% (-0.5%)
– Fillon 19.5% (+0.5%)
– Melechon 19.5% (+0.5%)
What gets me about these polls is the lack of variance. They’re always so similar. Should they range around in the 2-3% margin of error?