Exactly. I have a table on the page I linked above. Here it is:
Type Capacity mAH Discharge %/month Self discharge (uA)
CR1212 18 1 0.250
CR1620 68 1 0.950
CR2032 210 1 3
NiCD AAA 350 20 98
NiMH AAA 900 30 375
NiCd AA 1000 20 270
Alkaline AAA 1250 2 35
NiMH AA 2400 30 1000
Alkaline AA 2890 2 80
Li-Ion 4400 10 600
These are approximations but the general idea is that you don't need to get excited about using less than 1 uA because the battery is going to self-discharge much faster than that, particularly NiMH batteries.
To confirm MarkT's figure, if you use 1 uA then over a year that would be:
0.000001 * 24 * 365 = 0.00876 = 8.76 mAh