Figure 6

Daily SOHO LASCO CME rates for Cycle 23 (thin curves: smoothed per month, thick curves: smoothed over 13 months) from 1997 — 2006. These have been extracted using CACTus (red) and the CDAW CME Catalog (blue). As reference, the daily and smoothed monthly sunspot number have been overplotted in gray (produced using the SIDC-Royal Observatory of Belgium). The CME rates have been adjusted to accommodate for duty cycle. Image reproduced with permission from Robbrecht et al. (2009a), copyright by IOP.