No doubt, ouch! This is a bit more reasonable...
Starting capacity: 2535 mAh
Capacity remaining after 1 year: 97%
Ending capacity: 2458.95 mAh
Difference: 76.05 mAh
Days in one year: 365.24
Hours in one year: 8,766
76.05 mAh / 8,766 h = 0.008675802 mA = 8.676 uA