human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Year, Chart, Track, Peak, Weeks on Chart
###Question: Name the total number of weeks for si te vas and peak less than 7 and year less than 2000
gpt
SELECT COUNT Weeks on Chart FROM table WHERE Track = si te vas AND Peak < 7 AND Year < 2000