The NSF puts all their grant data on the web, and for a given year you can download the zipped file at the following URL:
https://www.nsf.gov/awardsearch/download?DownloadFileName=YOURYEAR&All=true
To be honest, thru the last 6-7 years or so the quality of content of those abstracts deteriorated greatly. Each proposal contains a lot of 'social justice'-type noise.