Reputation data vs. Reputation chart mismatch in daily > 200 rep

Question

My reputation history clearly says, that I have 'earned' (well ;-)) at least 200 reputation on 9 days (see the data at the end of this post, please)

However, there is a mismatch with my reputation graph chart (count the spikes: there are 10 spikes ;-))

Is there any apparent reason for this?

My reputation history for the last days.

 2    237679 (10)
 2    237679 (10)
 2    237792 (10)
 2    237776 (10)
 2    237792 (10)
-- 2015-04-09 rep +165  = 22592     

** rep today: 165
** rep this week (2015-04-05 - 2015-04-11): 567
** rep this month (2015-04-01 - 2015-04-30): 567
** rep this quarter (2015-04-01 - 2015-06-30): 567
** rep this year (2015-01-01 - 2015-12-31): 6074
** rep from bonuses: 100
** total rep 22592 :)

days represented 398
rep cap was reached via rep from upvotes *only* on 4 days
earned at least 200 reputation on 9 days
earned 122 reputation from suggested edits

The full reputation history is available here reputation history

Edit

Werner identified the cause...

Answer 1

The problem can be isolated to the following dates: March 28 & 29, 2015.

Your reputation graph shows:

This shows reputation gain of

• +210 for March 28, 2015
• +110 for March 29, 2015

However, your reputation history shows:

-- 2015-03-28           = 21695     
 2    235611 (10)
 2    235611 (10)
 1    235611 (15)
 2    235611 (10)
 2    235702 (10)
 2    235702 (10)
 2    235702 (10)
 2    235617 (10)
 2    235702 (10)
 2    235611 (10)
 2    235702 (10)
 2    235702 (10)
 2    235707 (10)
 2    235741 (10)
 2    235741 (10)
 2    235741 (10)
 2    235779 (10)
 2    235779 (10)
              rep +185  = 21880     
-- 2015-03-29
 2    235779 (10)
 2    235702 (10)
 1    235702 (15)
 2    235882 (10)
 2    235882 (10)
 2    235882 (10)
 2    234019 (10)
 2    234019 (10)
 2    206919 (10)
 2    234019 (10)
 2    235882 (10)
 2    235882 (10)
 2    235882 (10)
              rep +135  = 22015 

This shows reputation gain of

• +185 for March 28, 2015
• +135 for March 29, 2015

The differences account for the missing "at least 200 reputation on a day" count. Here's what happened:

An accepted answer on one day was unaccepted and re-accepted on another.

_{Another bug stems from the fact that your graph display doesn't match the other reputation timelines. The graph and reputation recalc points to the problem happening on March 28/29, while your timeline reputation view points to March 29/30.}