CREATE TABLE table_66473 ("Rank:" FLOAT, "State:" CLOB, "Premier:" CLOB, "Party:" CLOB, "Assumed office:" CLOB, "Left office:" CLOB, "TOTAL Time in office:" CLOB)

What average rank of the premier has NSW as the state, Liberalism as the party, and 22 March 1877 was the assumed office?
SELECT AVG("Rank:") FROM table_66473 WHERE "State:" = 'nsw' AND "Party:" = 'liberalism' AND "Assumed office:" = '22 march 1877'
SELECT AVG("Rank:") FROM "table_66473" WHERE "Assumed office:" = '22 march 1877' AND "Party:" = 'liberalism' AND "State:" = 'nsw'