Table:
text: IAAF Road Race Label Events
Bronze Label
Bronze Label
Road_race Distance Location_ Country Month_held
Maraton de Santiago Marathon Santiago Chile April
Pyongyang Marathon Marathon Pyongyang North Korea April
Brighton Marathon Marathon Brighton United Kingdom April
Nagano Marathon Marathon Nagano Japan April
Düsseldorf Marathon Marathon Düsseldorf Germany April
Hannover Marathon Marathon Hannover Germany May
Riga Marathon Marathon Riga Latvia May
Gifu Seiryu Half Marathon Half marathon Gifu Japan May
Edinburgh Marathon Marathon Edinburgh United Kingdom May
Corrida de Langueux 10 km Langueux France June
Vidovdan 10K 10 km Brčko Bosnia and Herzegovina June
Gold Coast Marathon Marathon Gold Coast Australia July
Siberian International Marathon Marathon Omsk Russia September
Paris 20K 20 km Paris France October

text: IAAF Road Race Label Events
Bronze Label
Bronze Label
Road_race Distance Location_ Country Month_held
Beirut Marathon 20 km Beirut Lebanon November
Alpes-Maritimes Marathon Marathon Nice France November
Valencia Marathon Marathon Valencia Spain November

Question: How many times a year does the Brighton Marathon take place under the Bronze Label of the IAAF Road Race Label Events?