fix all of the grammar problems in the following paragraph.
In contrast, the consumption of hamburgers and pizzas started at about 10 times for hamburgers and 5 times for pizzas in 1975, and then rose constantly until it reached approximately 100 times and 85 times respectively in 1995.
In contrast, the consumption of hamburgers and pizzas started at about 10 times for hamburgers and 5 times for pizzas in 1975 and then rose constantly until it reached approximately 100 times and 85 times, respectively, in 1995.