EPRM/FPRM Power Saving Numbers

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Are there any actual figures available for how much the XMEGA power draw/current draw is reduced by putting the EEPROM and/or boot loader flash memory into low-power mode via the NVM.EPRM and NVM.FPRM bits?

I was trying to determine this for the A3 family of XMEGA processors but couldn't find it in the document I was scouring (8068). There are numbers for many of the other peripherals, and information for EEPROM and flash current usage during programming (i.e. writing, which is obviously higher current), but no apparent information in terms of savings yielded by putting these to sleep. I can't imagine it's much, but it would still be nice to know exactly what kind of value we're talking about.