user: Question: What is the total subframe count with Bits of 18–22?
Columns: ['Subframe #', 'Page #', 'Name', 'Word #', 'Bits']
Types: ['real', 'text', 'text', 'real', 'text']
Sample row: [2.0, 'all', 'IODE', 3.0, '1–8']
SQL:

assistant: SELECT SUM("Subframe #") FROM "Table" WHERE "Bits" = '18–22';