how long did the last place swimmer take to swim the 100 meter butterfly?
56.04
col : rank | name | nationality | time row 1 :  | mark henderson | united states | 54.11 row 2 :  | eduardo piccinini | brazil | 54.63 row 3 :  | brian alderman | united states | 54.75 row 4 : 4 | francisco sánchez | venezuela | 54.99 row 5 : 5 | edward parenti | canada | 55.23 row 6 : 6 | diego cuenca | colombia | 55.67 row 7 : 7 | josé meolans | argentina | 55.91 row 8 : 8 | ruben calderon | el salvador | 56.04
how long did the last place swimmer take to swim the 100 meter butterfly?
Rank Name Nationality Time
Mark Henderson United States 54.11
Eduardo Piccinini Brazil 54.63
Brian Alderman United States 54.75
4 Francisco Sánchez Venezuela 54.99
5 Edward Parenti Canada 55.23
6 Diego Cuenca Colombia 55.67
7 José Meolans Argentina 55.91
8 Ruben Calderon El Salvador 56.04
56.04