①Compared with…is still increased by… ②The number of…grew/rose from…to… ③An increase is shown in…;then came a sharp increase of… ④In…the number remains the same/drops to… ⑤There was a very slight(small/slow/gradual)rise/increase in 1990. ⑥There was a very steady(marked/sharp/rapid/sudden/dramatic)drop(decrease/decline/fall/reduction)in 1998/compared with that of last year).