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_96 (year INTEGER, venue VARCHAR, event VARCHAR, competition VARCHAR)
### Question:
How many years had a 100 m hurdles event at the world championships in Osaka, Japan?
### Answer:
SELECT SUM(year) FROM table_name_96 WHERE event = "100 m hurdles" AND competition = "world championships" AND venue = "osaka, japan"