'dropped remarkably' is a perfectly correct and usable phrase in written English.
You can use it when you want to articulate that something has decreased or depleted significantly. For example: "Sales of the product dropped remarkably in the second quarter."
Overall violence and American casualties have dropped remarkably since the surge began last year.
But two years later, when he ran against a Cuban-American, his share of the Cuban vote dropped remarkably, to 22percentt.
Test results showed that transport properties of concrete increased significantly after exposure to 400 °C, as well as, compressive strength dropped remarkably.
The viscosity of modified glucan solution dropped remarkably and the glucan after ultrasonication for more than 20 min was dissolved in water to give solutions of 30 g/100 ml or greater.
While overall poverty levels have dropped remarkably, wide disparities still exist.
Based on the results of this study, over the next five years proportions of the variants prn2 and particularly prn3 in Queensland now appear to have dropped remarkably.
If Iran were able to reform its drug policy, the prison population would drop remarkably (given that in the current condition, about 60-70% of inmates are charged with drug-related offences).
However, the strength may drop remarkably after incorporation of large amount of rubber.
The sheet resistivity drops remarkably with the rise of the film thickness or with the decrease of transparency.
More importantly, both of the α-spin and β-spin currents would drop remarkably when one ZGNR electrode is twisted.
In particular, as κ increases, it leads to the decrease in the STP, in which the STP in AF scheme drops remarkably when E D =5 dB.
