How many 1978 El Camino royal knights were made?

The Royal Knight El Camino replaced the Black Night El Camino in mid 1978 after General Motors was sued over using the Words Black Knight. However, the Royal Knight was a 1979 model and was never produced as a 1978 model. The 79 Royal Knights were made with a super sport package and came with a 305, 4 barrel carburetor (mostly in an automatic unless special ordered with a stick shift). The Royal Knight was produced through 1983. From 1979 to 1980 it was a regular production car. The exact number is unknown. From 1981 to 1983 the Royal Knight was available through special order. It was no longer a regular production vehicle.