These have been identified as endemic within the US population
A(H1N1) Subclade 6B1A
A(H3N1) Subclades 3C2a1, 3C2a2, 3C2a3, 3C2a4
B(Victoria) Subclades V1A1, V1A2, V1A3
Query those totals per incident rate. The CDC reports only the dominant strain given for each year.