Subject: Re: New post from Brooklyn investor
Berkshire asset, percent of company by assets, trailing 10-year return

equities, 25%, 15%/yr
T-Bills, 25%, 4%/yr
Other (subs), 50%, 15%/yr
Total, 100%, 12%

How did they get a trailing 10-year return on T-bills of 4%? Even today T-bills only yield 3.6-3.7%. But a few years ago, it was close to zero for a very long period (many years).