Ten or more years later....what ozone hole????
Prospects for the long-term recovery of the ozone layer are good. Non-essential consumption of major ozone depleting substances ceased for developed countries in 1996, and for developing countries in 2010.
Scientists predict that if the international community continues to comply with the Montreal Protocol, the ozone layer should recover to pre-1980 levels between 2050 and 2065.
Ozone and the ozone layer Australia
I tend to believe the Ozone layer is recovering because of deliberate, targeted action. The chemistry behind is simple, and well understood. One could argue this is unscientific, as there was no control in this experiment, so possibly the Ozone layer would have recovered without any reduction of CFCs etc, but since we are limited to one earth to play with, it seems prudent to err on the side of caution.