Two maximun values on cable datasheet

[rubron]

I have seen two max values for cables, why are there two values, which one should I use for general purposes. For instance in this when,you can see two values:

https://www.altestore.com/howto/maximum-ampacity-current-capacity-for-wire-and-cable-a108/

 

[7anoter4]

This table is copied from NEC Table 310.15(B)(16)
First column it is for maximum conductor temperature of 75Co and second column for 90 Co.
NEC allows 75Co for current above 100 A usually- but 90Co-if the core insulation is EPR or XLPE and the insulation maximum permitted temperature is 90Co-before correction for more than 3 loaded conductors in a conduit, duct or raceway-or other correction-and if the resulted ampacity [after
correction] is not more than permitted for 75Co.If the current is less than 100 A-and the devices connected with does not allow a higher temperature -only 60Co is permitted.