Answer:
This answer would varies, Between 1960 and 2000, per capita generation increased. After 2000, per capita generation declined. I would guess the answer is most likely be 2000. Because Solid waste generation per person per day peaked in 2000 while the 4.38 pounds per person per day is the lowest since the 1980's. The recycling rate has increased–from less than 10 percent of MSW generated in 1980 to over 34 percent in 2012.
I hoped this helped!