The experimental dataset used to create the figures in the paper Zasedatelev A., Baranikov A., Sannikov D., Urbonas D., Scafirimuto F., Shishkov V., Andrianov E., Lozovik Yu., Scherf U., Stoferle T., Mahrt R., Lagoudakis P., Nature (2021). Single-photon nonlinearity at room temperature</span