Ethnic structure is marked with fluctuations in the 20th century, as it can be seen from the census data.

From 3000 years ago to the start of the 19th century, sea level was almost constant, with only minor fluctuations.

We need to develop a capacity to deal with economic fluctuations.

Inland, lake levels in all north Europe were generally higher, with fluctuations.

Today, that rate is generally well below two, where it has held steady, with minor fluctuations, for the past century.

The population has remained relatively stable since 1900, with slight fluctuations.

Yes, so far, but not out of line with normal fluctuations.

The set point is not completely fixed and constant, but can be quite dynamic with significant fluctuations.

In the summer the temperature rises above 30 C, with extreme fluctuations during the day.

And since 1967, with minor fluctuations, I have stayed at my normal weight.