The phrase "a relatively stable rate" is correct and usable in written English.
It can be used when discussing measurements, trends, or statistics that show consistency over time, but with some minor fluctuations.
Example: "The study found that the population growth occurred at a relatively stable rate over the past decade."
Alternatives: "a fairly constant rate" or "a moderately steady rate".
The peat sequence accumulated at a relatively stable rate of ~0.4 cm decade−1, with the exception of higher rates at the time of peatland inception (4.38 4.13 m, ~2 cm decade−1) and a brief slowdown near the core top (0.21 0.15 m, ~0.1 cm decade−1) during the period ~1000 200 cal yr BP.
There was an initial drop in the population-based rate of alcohol-related pedestrian injuries in New York City in 2002, followed by a relatively stable rate of approximately 2.8 alcohol-related injuries per 100,000 persons each year (Fig. 1).
Death without AIDS, which accounted for 27 of the cases, had a relatively stable rate over calendar periods after 1997 (as this information was not retrospectively collected for the pre-1997 period), from 0.6 per 100 PY in 19972000 to 0.3 per 100 PY in the following periods.
Compared to other European countries [ 8], Belgium has a high and relatively stable rate of HIV testing, with a total of 695.433 HIV tests performed (62 per 1000 inhabitants) in 2013.
There was a high and relatively stable rate of nosocomial infections in the ICU of a tertiary hospital in China through year 2003 2007, with some differences in the distribution of the infection sites, and pathogen and antibiotic susceptibility profiles from those reported from the Western countries.
In conclusion, there was a high and relatively stable rate of nosocomial infections in the ICU of a tertiary hospital in China through year 2003 2007, with some differences in the distribution of the infection sites, and pathogen and antibiotic susceptibility profiles from those reported in the Western countries.
Consistent with published data from Shea and colleagues, we found increasing incidence of pneumonia with increasing age in at-risk, high-risk, and healthy persons, and relatively stable rate ratios, suggesting that the relative increase in disease risk with age is similar in all three groups [ 13].
The relatively stable rate for contacting services for unscheduled care over time appears to contradict reports of increasing use of services in England.
Results support field experience indicating that woodchips loose about 50% of their reactivity during their first year of operation as soluble organic compounds are leached out, but then relatively stable rates persist for a considerable number of years thereafter.
A relatively stable exchange rate also enhances a reserve currency's economic attractiveness.
Only in the United States has there been a relatively stable natural rate of unemployment to serve as a reliable indicator of when demand pressure is about to raise inflation.
