Soft excess strength (Q) as a function of Eddington ratio (λ_Edd). The filled blue circles and orange squares represent the data from type 1 and type 2 states, respectively, while the open blue circles and orange squares represent the upper limits from type 1 and type 2 state, respectively. The yellow stars represent the binned data points, while the yellow down triangle represents the upper limit. The black dashed line represents the best fit. The gray region marks the 1σ scatter.