489 Visa Grant Delay

Hi! My husband has applied 489 family sponsor visa on Aug 16 2019 with the ANZESCO code 233211 with points 85, and immigration contacted us on December and again on May, after that we are waiting for our visa to be granted but there’s no any signs of grant. When should we expect our grant date?

Right now many CO contacts happened for first time and few grants as well.

Invited Pathway (applicants nominated by state/territory/eligible relative to apply for the visa): 75% of the applications take 19 months while 90% applications take around 24 months .