I am not of the opinion that graphs of individual data points "proove" anything. It was just missing a very new piece of information that was released just hours before I posted the "missing" data point in this thread.. which happened to be very on-topic.. and also a continuation of the displayed trend.
I am no expert in this topic at all.. however I will also note that the release of the "5.9" figure for this quarter supposedly represented a historically significant low value... aparently (according to the media source that I happend to hear this from) it is a big deal that it is now below 6.0. If you are interested in doing so, feel free to support your statement by telling us the last time we were below 5.9. If your observation is correct, then your answer should be, "recently".. no?