Started in 1990 and extended with more weights in 2001.
Contributed by Oskar Hannu
Contributed by Chris Purcell
Contributed by João Augusto
Contributed by Joana Correia
Contributed by Love Lagerkvist
Contributed by Sergio Martinez
Contributed by Shiva Nallaperumal
Contributed by Stephen Coles
Contributed by Jordi Embodas
Contributed by harrison watkins
Contributed by Lindsey Armstrong
Contributed by elliottbrown
Contributed by John D. Berry
Contributed by Sam Berlow