a rise

an increase

a surge

a growth

a peak

a fluctuation

a variation

a period of stability

a plateau

a fall

a decrease

a decline

a dip

to rise

to increase

to surge

to grow

to peak

to skyrocket

to fluctuate

to vary

to fall

to decrease

to decline

to dip

to dive

to plunge

to show an upward trend

to show a downward trend

to hit the highest point

to hit the lowest point

to reach a peak

to show some fluctuation

to fluctuate wildly

to remain stable

to remain static

to remain unchanged

to stay constant

to reach a plateau

to level off

to flatten out

the highest

the lowest

the second highest

the third highest

compared to

compared with

relative to

sharply

suddenly

rapidly

abruptly

dramatically

significantly

steadily

considerably

markedly

slightly

gently

gradually

wildly

sharp

sudden

rapid

abrupt

dramatic

steep

significant

steady

considerable

marked

slight

gentle

gradual