When +18.1 is the ± yes side 2008 percentage what is the percentage of against?
CREATE TABLE table_20683381_3 (against___percentage_ VARCHAR, ±_yes_side_2008___percentage_ VARCHAR)
SELECT against___percentage_ FROM table_20683381_3 WHERE ±_yes_side_2008___percentage_ = "+18.1"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_20683381_3 (against___percentage_ VARCHAR, ±_yes_side_2008___percentage_ VARCHAR) Question: When +18.1 is the ± yes side 2008 percentage what is the percentage of against? [/INST] SELECT against___percentage_ FROM table_20683381_3 WHERE ±_yes_side_2008___percentage_ = "+18.1" </s>