Here is a concise summary from Diagnosis 2012. Each of the authors have books available at Amazon.

YEAR B.C.

Hapgood 14,500-12,500

Braden 11,200

Sitchin 11,000

Alford 10,983

LaViolette 10,700

Hancock 10,500

Geryl & Ratinckx 9,792

Allan & Delair 9,500

Gaspar 9,500

Collins 8,600-8,500

Knight & Lomas 7,640