Table: mariano scartezzini
[['year', 'performance', 'world ranking', 'venue', 'date'], ['1979', '8.22.72', '3', 'turin', 'jun 9'], ['1980', '8.12.5', '4', 'rome', 'aug 5'], ['1981', '8.13.32', '1', 'zagreb', 'aug 16'], ['1982', '8.22.34', '14', 'berlin', 'aug 20'], ['1983', '8.21.17', '19', 'helsinki', 'aug 12']]
Statement: Mariano 's best World Ranking was in 1981 in Zagreb
Statement: all of Mariano 's top ranked Performance occurred in Venue located in europe
Statement: all but 1 of Mariano 's top ranked Performance occurred in the month of August
Statement: Mariano 's top tanked Performance span a period of 4 Year , 1979 - 1983
Statement: Mariano dropped out of the top 10 of World Ranking in 1982