Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_94 (us_cham_rank INTEGER, next_highest_spender VARCHAR, year VARCHAR)
### Question:
Which US Cham Rank is the lowest one that has a Next Highest Spender of national assn of realtors, and a Year smaller than 2012?
### Answer:
SELECT MIN(us_cham_rank) FROM table_name_94 WHERE next_highest_spender = "national assn of realtors" AND year < 2012