Subject: 10 year growth
Just something fun my spreadsheet spits out:

2013-2022 CAGR:
Year End Book Value 11.0%
Shareholders Equity + Float + 1/2 Deferred Taxes 10.7%
5 Groves (my version) 12.2%
Year End Share Price (B's) 13.2%
SPY 12.5%

I'm happy.