Once again, the country’s biggest law firms outperformed corporate America in their level of support for lesbian, gay, bisexual, transgender and queer employees.

However, the number of firms receiving perfect scores in Human Rights Campaign Foundation’s 2019 Corporate Equality Index, released Thursday, dropped from the 2018 peak. Of 164 firms participating, 114 received perfect scores. In the 2018 report, 127 of 160 participants earned the highest possible rating.