The phrase "a steady decrease in" is correct and usable in written English.
You can use it when describing a consistent reduction in a particular quantity or measurement over time.
Example: "The data shows a steady decrease in the population of the species over the last decade."
Alternatives: "a gradual decline in" or "a consistent reduction in".
But he said monthly revenue reports showed a steady decrease in tax receipts throughout this year.
There is a steady decrease in total rainfall from southeast to northwest and a marked increase in variability.
There has been a steady decrease in the number of practitioners who can attend network meetings and help plan and support its activities, such as an annual event that gives BME carers invaluable information and much needed respite.
And while a cap-and-trade approach bears substantial cost, it also brings a benefit whose value is incalculable — a steady decrease in emissions that scientists say will over time reduce the risk of climate catastrophe.
Even long-term incomers go home, and the Observatory reports "a steady decrease in the share coming for more than four years" (27 per cent in 2013).
The temperature record showed a steady decrease in the frequency of the cold years that led to extensive sea-ice formation along the Antarctic Peninsula, which occurs when the mean annual air temperature falls below 24 degrees Fahrenheit.
A steady decrease in the crystallite size is observed and the quartz phase suffers the most.
Beyond this concentration, there was a steady decrease in the decolourisation of MO.
The 360's early launch gave it a lead to begin with, and a steady decrease in cost hasn't hurt either.
Furthermore, there is a steady decrease in accuracy when the segment size increases from 100 to 600 (Fig. 4).
The slow and uniform degradation of the implant ensures a steady decrease in bending force, which meets clinical requirements.
