Table: player_stats_18
Columns: nat
name
since
goals
ends
transfer_fee

Question: What is the total number of ends after 2006 with a nationality of ita and 0 goals?
SQL: SELECT COUNT("ends") FROM player_stats_18 WHERE "since" > 2006 AND "nat" = 'ita' AND "goals" < 0

Question: What is the lowest year in since that had a transfer fee of € 14m and ended after 2011?
SQL: SELECT MIN("since") FROM player_stats_18 WHERE "transfer_fee" = '€ 14m' AND "ends" > 2011