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_25983027_1 (rainfall_by_depth__mm_year_ VARCHAR, infiltration__km_3__year_ VARCHAR)
### Question:
How many regions had rainfall infiltration (km 3/year) of 9.3?
### Answer:
SELECT COUNT(rainfall_by_depth__mm_year_) FROM table_25983027_1 WHERE infiltration__km_3__year_ = "9.3"