verb
ADVERB
▪ considerably , greatly
▪ dramatically , widely , wildly
▪
Prices have ~d wildly in recent years.
▪ constantly
▪
constantly fluctuating patterns
PREPOSITION
▪ according to
▪
Traffic congestion ~s according to the time of day.
▪ around
▪
The number of students ~s around 100.
▪ between
▪
The number of unemployed ~s between two and three million.
Fluctuate is used with these nouns as the subject: ↑ currency , ↑ fortune , ↑ population , ↑ price , ↑ rate , ↑ weight