Fig. 1

Cliquets’ diagram for different time periods: A left upper panel: April 1 to June 30, B right upper panel: July 1 to August 31, C lower left panel: September 1 to October 31, D lower right panel: November 1 to December 31. Red points indicate the midpoint of the weeks (Wednesdays), triangles correspond to the given dates of increased measures (triangle pointing upwards) or released measures (triangle pointing downwards). Dates are given in the format day/month