user: ### NOW ANSWER:
Question: In what year saw a total distance of 1,870.23 km?
Columns: ['Year', 'Date', 'Stages', 'Distance', 'Winner']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1955', '28 April–1 May', '4', '418 km', 'Antonio Arzala ( PHI )']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Distance" = '1,870.23 km';