What was the total number of years than had best improved singer (躍進歌手)?
CREATE TABLE table_name_52 (year INTEGER, category VARCHAR)
SELECT SUM(year) FROM table_name_52 WHERE category = "best improved singer (躍進歌手)"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_52 (year INTEGER, category VARCHAR) Question: What was the total number of years than had best improved singer (躍進歌手)? [/INST] SELECT SUM(year) FROM table_name_52 WHERE category = "best improved singer (躍進歌手)" </s>