Tropicana Smooth Orange Juice 950ml not 1 litre

How long have the what I always assumed were 1 litre cartons of Tropicana Smooth Orange only been 950ml?

Is this another case of them reducing the quantity and hoping we don’t notice, rather than putting the price up?

1 litre carton of Tropicana Orange Juice 950ml carton of Tropicana Orange Juice