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_23015396_1 (year VARCHAR, date VARCHAR)
### Question:
Name the number of year for june 30
### Answer:
SELECT COUNT(year) FROM table_23015396_1 WHERE date = "June 30"