```sql SELECT party_drug_physical, count(1) as total FROM parties GROUP BY 1 ORDER BY 2 DESC LIMIT 500; ``` What is the value `G`? It's not mentioned in the code book: https://tims.berkeley.edu/help/SWITRS.php 
What is the value
G? It's not mentioned in the code book: https://tims.berkeley.edu/help/SWITRS.php