user: Question: What's the Total number of Opening Weekend Net Gross that occured after the year 2012 with a Rank of 1?
Columns: ['Rank', 'Movie', 'Year', 'Studio(s)', 'Opening Weekend Net Gross']
Types: ['real', 'text', 'real', 'text', 'real']
Sample row: [1.0, 'Chennai Express', 2013.0, 'Red Chillies Entertainment', 1004200000.0]
SQL:

assistant: SELECT SUM("Opening Weekend Net Gross") FROM "Table" WHERE "Year" > 2012.0 AND "Rank" = 1.0;