Integrated star formation history of the whole galaxy (blue) and the age distribution of star clusters (red, bottom panel). The bottom panel is an enlarged view of the last 1 Gyr. The leftmost data point of the top panel represents the average star formation rate of the last 1 Gyr, and the other three points correspond to the star formation rate averaged over logarithmic age intervals of 0.4 dex. In the lower panel, the red horizontal error bars correspond to the (logarithmic) age intervals used for cluster counting, while the red vertical error bars account for the measurement uncertainties of ages and counting noise.