Compared to the UK we have been late to the party so to spea
We are actually down to 35ml now in the U.K, and would say we have been for at least a couple of years (if not more, it could actually be closer to 4/5 years).
This could have been spurred on by the fact we have had the “small and mighty” liquid formulation from Unliver (the makers of our Persil) for about 10 years, but the 35ml is for all major brands, not just Unilever.
However, for Proctor and Gamble powders only (not liquids), their powder dosage has gone UP!! (minimum dose [eg normal soil and soft water for 4-5kg load] is now 105ml, it used to be 75ml).
It actually seems that P&G have started the the proper war on Powders now and are trying to drag people, kicking and screaming if need be, in to wet detergent formats. Certain powder variants are become ever increasingly hard (if not impossible) to find, and you can seemingly no longer get detergent powder scoops from them.