user: Question: What is the lowest Year, when Notes is "5.19km, 18controls"?
Columns: ['Year', 'Gold', 'Silver', 'Bronze', 'Notes']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2002.0, 'Gunilla Svärd', 'Brigitte Wolf', 'Birgitte Husebye', '4.5km, 13controls']
SQL:

assistant: SELECT MIN("Year") FROM "Table" WHERE "Notes" = '5.19km, 18controls';