Stacked bar charts representing the number of experimental responses in which no plasma signature emerged from the noise (red area, 1 569 509 responses), the number of experimental responses in which a plasma signature emerged from the noise but that were not well fit by the simulations (green area, 305 782 responses), and the number of experimental responses in which a plasma signature emerged from the noise that were well fit by a simulation from the database (blue area, 569 441 responses) between January and the end of September 2016.