Accuracy of internal RTC on Colibri iMX7

What is the accuracy of the internal RTC of the iMX7 SoC?

This table I found does not contain a value for the accuracy: RTC
Can the accuracy, of the iMX7 internal RTC, be expected to be lower, higher or in the same range as the other accuracies of the modules listed in the above linked table?

Accuracy of internal RTC clock are defined by 32.768kHz oscillator placed on Colibri iMX7 module. That oscillator has a 20ppm frequency tolerance.