Ummmm, Sawzaw....not intending to speak for Amos...who has shown no difficulty in speaking for himself :)
But,
If you draw a straight line ontop of the vhart's peaks and valleys, there does seem to be a pattern of rise, between the ups and downs. One can awlways expect peaks and valleys in climate. The more energy in the system, the greater the variability....I suspect? Looks like we are currently on one of the valleys, if the pattern continues....?