Starting in 1985 I kept and still keep a log on every plane I fly, which includes the number of flights, the specific engine used and the fuel employed! These stats are transferred to a grid for each plane by month, and finally totaled at year's end or shortly thereafter! The summary does look like a spread sheet but I am not familiar with dp to do it on the PC! I used a free calendar book, the kind which companies give out at Christmas or year end! Once upon a time I was interested in the All Season Flyer idea! I never applied for the credentials to very and get the badge but I kept this up every month from'85 to September 2001( the year of 9/11) when I had my first knee job! I was ordered to NOT fly and didn't for 6 weeks! There went my many year skane! Now I still do my record keeping thing out of curiosity for every plane. In addition I now keep a Flying Log Diary which notes anything noteworthy regarding the day of fun at the field.
Its really fun and enlightening to review our years as they roll by so very fast!
Phil Spillman