This is hardly ever done. There is sometimes confusion with overall county figures, or those for all first-class cricket. Below are some numbers for County Championship matches only. Goes back to the first championship of 1827.Judged solely on career performance in The County Championship
Ten batsmen average fifty, having scored at least 20,000 runs
Boycott 58.27, Ramprakash 58.18, Fry 56.77, Hammond 56.67, Hick 54.19, Gatting 51.46, Glenn Turner 51.20, Gooch 51.15, Sutcliffe 50.71, Hendren 50.49
Ten bowlers average under 20, having taken at least 2,000 wickets
Rhodes 15.71, Blythe 16.33, Freeman 17.30, Tate 17.55, Jack White 17.86, Hirst 18.09, Shackleton 18.12, JT Hearne 18.20, Parker 19.30, Goddard 19.46
Nine all-rounders have scored 20,000 runs and taken 1,000 wickets
Grace, Hirst, Rhodes, Woolley, JW Hearne, JH King, John Gunn, Vallance Jupp, James Langridge
Six wicket-keepers have completed 1,100 dismissals
Bob Taylor 1220, Strudwick 1131, Huish 1128, Brian Taylor 1127, Harry Elliott 1124, John Murray 1123
Six fielders have held 600 catches
Woolley 712, John Langridge 707, Arthur Milton 642, Brian Close 625, Peter Walker 609, Phil Mead 603