While I wanted to ask this question on meta I found this question.
It's asking, 'Why is my total reputation less than my monthly reputation?'
The answer is likely the same as for my question.
The discrepancy is by design:
- Total reputation is your current reputation on the site (accurate to within 24 hours).
- Month reputation is the amount by which your reputation changed that month, excluding "private" reputation events. Certain
reputation events are excluded from your public user profile, such as
deleted posts or downvotes, so those are excluded from the leagues as
well.
In other words, "total reputation" includes private reputation events,
while "month reputation" does not.
Now we only have to change 'Month' to 'Year' and my question is answered:)