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_95 (year INTEGER, round VARCHAR, winner VARCHAR)
### Question:
What year did Ivanovic win with Ivanovic greater than 4 and round of R16?
### Answer:
SELECT SUM(year) FROM table_name_95 WHERE winner = "ivanovic" AND "ivanovic" > 4 AND round = "r16"