Table:
text: 1980 British Formula One season
Races
Races
Round Name_ Circuit Date_ Winning_driver Winning_car
1 International Gold Cup Oulton Park April 4 Guy Edwards Arrows A1
2 Evening News Trophy Brands Hatch April 7 Desiré Wilson Wolf WR4
3 International Trophy Silverstone April 20 Eliseo Salazar Williams FW07
4 Sun Trophy Mallory Park May 5 Emilio de Villota Williams FW07
5 Rivet Supply Trophy Thruxton May 26 Eliseo Salazar Williams FW07
6 Monza Lottery Grand Prix Monza June 29 Emilio de Villota Williams FW07
7 ATV Trophy Mallory Park July 27 Emilio de Villota Williams FW07
8 Anglia TV Trophy Snetterton August 10 Guy Edwards Arrows A1

Question: How many rounds were there in the 1980 British Formula 1 season, race name Anglia TV Trophy?