NEW GENERAL SERVICE LIST-SPOKEN 1.2 (NGSL-S):
In late 2013, Dr Browne and Dr Culligan analyzed the spoken subsections of the NGSL corpus and published a list of frequencies for spoken English known at the NGSL-S. The 1.0 version contained 822 words which provided up to 90% coverage for spoken English. In 2016, the 1.1 version of the list was published, with slightly better coverage (718 words to reach 90%). In October of 2017 the 1.2 version of the NGSL was released. This list is 721 words and provides up to 90% coverage for unscripted spoken English.
Downloadables for NGSL-S 1.2 word list:
NGSL-S by Charles Browne & Brent Culligan is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at http://www.newgeneralservicelist.org.
Permissions beyond the scope of this license may be available at http://www.charlie-browne.com.