2016 Peony Data Entry in Winter Time

I finally finished inputting the data I collected during the 2015 peony season last night. That ruler is to help me stay on the correct line. I think next year I need to go to two pages. The print is just getting way too small to keep everything on one page. Also my baby bear, Isabella, was keeping me company during this tedious work. Her smile made it a bit more manageable. I am looking forward to analyzing the data to see what it will reveal. I now have 10 years of bloom data. Now that I have 10 years' worth of data, it's time to put that 2015 Peony Bloom Data in Peony Database to good use! Look for some bloom data coming out sometime this year on my Bloom Dates page. :-)
The only problem I had with this year's data is that my Peony 'Red Charm' didn't bloom at all since its buds were blasted by our late winter storm, 2015 Early Peonies Suffered Frozen Bud Blast. So I don't have an offset date. After examining the last five years' worth of data, it looks like my Peony 'Grace Root' has bloomed within 1 day of Red Charm in 4 out of 5 years. So it sounds like Peony 'Grace Root's bloom date may be a suitable offset date for the 2015 data. Also Peony anemoneflora's bloom date was within 1 day of Red Charm in 3 out of 5 years and both Peony 'Grace Root' and Peony anemoneflora bloomed on the same date in 2015. So this will be my 2015 offset date, April 24th. I know the bloom date of Peony 'Red Charm' has been used as an offset date to calculate bloom times for peonies in the past. However, I'm not sure I'm convinced that it is a sounds scientific method. I may use bloom mean or median date, or some type of combination of these.