1.the number/percentage of sth went up/down from in to from in
2.a rise can be found in the number of sth from in to from in
3.the trend showed the steady increase/decrease in the number of teachers from in to from in
4.china saw a rise in the number of teachers from in to from in
5there was a rise/decrease in the number of teachers from in to from in
6.the years from to saw a rise in the number of teachers from to .
