Missing year in export list to Excel? [resuelto]

Hi, in the export list of my collection the year (also Gregorian year) is empty in a few cases, although the coin is entered with year in Numista.
Is there a reason for this? It is disturbing as I do automatically print labels, link to other catalogues etc. with this export data.

I have this phenoma so far (out of 1000 entries) with:
N# 7367, N# 15387, N# 6463, N# 7145, N# 404, N# 14545; N# 14825; N# 63042; N# 12412; N# 25339; N# 11990; N# 12759; N# 12759; N# 27632; N# 10916; N# 12993; N# 12999; N# 5998;

PS: And should you take a look at this: Would it be possible to add the rarity index to the export lists? I consider it a valuable information e.g. to focus on missing coins first that are "easy to get"

That first coin
https://en.numista.com/catalogue/pieces7367.html
has ND (1974) in the year list.
Maybe that has something to do with it.
Probably the rest will be like that.

Yes, that's right, I saw it elsewhere
https://en.numista.com/catalogue/pieces12999.html

Is that ND "not dated", but then with a year anyway? Maybe no or different year on the coin.
Most of these cases again have a "Year range" of 1 year only, which is what I will be using. How come this year is not in the year field?
There are some cases with a year range, that's when I'm lost, e.g. N# 404, N# 63042, N# 12412

Cita: "ChrisUsKoelle"​
​PS: And should you take a look at this: Would it be possible to add the rarity index to the export lists? I consider it a valuable information e.g. to focus on missing coins first that are "easy to get"
​

​Discussed (and rejected) here:

https://en.numista.com/forum/topic110755.html

Hello,
I fixed the missing dates

Great, it's working well, that was quick.
Thanx, Xavier!