Bad cricket statistics

Come on, everyone knows the standard deviation isn't resistant to outliers, so Brian Lara gets punished for two of the greatest innings of all time. A simpler, sensible measure of consistency, as the word is understood, is percentage of innings that results in 50s. For 5500+ run batsmen:

Bradman 53%
Barrington 42%
Richards, Dravid, Hutton, Kallis 38%
Inzamam, Ponting, Gavaskar 37%
Chappell, Tendulkar, Lara 36%

and at the other end:

Hooper 23%
Jayasuriya 25%
Stewart, de Silva 26%
Gibbs, Hussain 27%

A better measure of inconsistency would be percentage of single figure scores, which someone else can do.