List of doping cases in athletics

Columns: Name | Country | Event | Date of violation | Banned substance ( s ) / Anti-doping rule violation | Sanction
Hristina Risteska | Macedonia | Sprinting | 2015 | Stanozolol , methandienone , norandrosterone | 4 years | José Rocha | Portugal | Long distance | 2010 | Biological passport anomalies | 2 years | Mike Rodgers | United States | Sprinting | 2011 | Methylhexaneamine | 9 months | Rosa America Rodríguez | Venezuela | Long distance | 2010 | Nandrolone | 2 years | Zudikey Rodríguez | Mexico | Sprinting | 2010 | Methylhexanamine | 6 months | Marielis Rojas | Venezuela | High jump | 2011 | Norandrosterone | 2 years

Example questions:
In what year did the earliest competitor with initial R on the list of doping cases compete in the Olympic games ? | The most recent race walking violator with initial R for doping competed in the Olympics in what year ? | Which of the athlete with initial R that were disqualified in 2013 for doping was older ? | Which of the US competitors with initial R on the list of doping cases is younger ?

Answers:
1980 | 2012 | Ebrahim Rahimian | Michael Rodgers