While; whereas; on the other hand; in contrast; by contrast; however...
Describe the arrowed line
Leveled off; flatlined
Whereas; in contrast; on the other hand
Describe the arrowed line
Reached a peak, high point, zenith
Describe the arrowed line
Dropped dramatically; started to decrease dramatically
Describe the arrowed line
Increased dramatically; rocketed; skyrocketed; soared
Overall,
Describe the arrowed line
Hit a low; hit a low point; reached a nadir.
Doubled
Similarly; likewise; one line more or less mirrored the other.
Describe the arrowed line
Fluctuated; was erratic; a period of fluctuation
Describe the arrowed line
Plummeted; plunged; fell away dramatically
The former...the latter...
Increased twofold
In contrast
Increased by 100%
Describe the arrowed line.
Remaining flat/stable
Describe the arrowed line.
Increasing/Rising gradually/steadily
Describe the arrowed line
Leveled off
Between...and...
Respectively
From...to
Describe the arrowed line.
Decreasing/Declining gradually/steadily