OpinionnextLI on InstagramFebruary 2, 2021SharenextLI combines data and conversation to shape the future of Long Island. Visit next.newsday.com to learn more.Education on LI: Student enrollment gradually shrinkingnextLI's analysis of state department of Education data finds Long Island's enrolled student population has moderately declined since 2000, and more students are attending public schools over private schools compared to 18 years ago.