user: Question: In what Election year was adalberto mosaner the Mayor with less than 16170 Inhabitants?
Columns: ['Municipality', 'Inhabitants', 'Mayor', 'Party', 'Election']
Types: ['text', 'real', 'text', 'text', 'real']
Sample row: ['Trento', 116298.0, 'Alessandro Andreatta', 'Democratic Party', 2009.0]
SQL:

assistant: SELECT "Election" FROM "Table" WHERE "Mayor" = 'adalberto mosaner' AND "Inhabitants" < 16170.0;