user: Question: What was the fewest number of viewers for the episode production number of 109 5-22?
Columns: ['Episode number Production number', 'Title', 'Original airing', 'Rating', 'Share', '18-49', 'Total viewers (in millions)', 'Rank per week']
Types: ['text', 'text', 'text', 'real', 'real', 'real', 'real', 'text']
Sample row: ['88 5-01', "You're Gonna Love Tomorrow", 'September 28, 2008', 11.4, 17.0, 7.1, 18.684, '#2']
SQL:

assistant: SELECT MIN("Total viewers (in millions)") FROM "Table" WHERE "Episode number Production number" = '109 5-22';