thanks for asking. I double checked, but, actually, no, the black label was purposely placed right at the end of 2015. Each of the lines shows the evolution of the Niño 3.4 SST anomaly for different El Niño events, beginning in year 1 of the event, and continuing on through the decay and transition period. Sorry for the confusion, though. Next time we do a similar graph, we'll consider ways to make the time periods more obvious.[[{"fid":"20124","view_mode":"default","type":"media","attributes":{"height":"464","width":"797","class":"media-element file-default"},"link_text":null,"fields":{"alignment":""}}]]