I find it hard to finish on the evaporator with steam pans. It tends to really start foaming as it gets close.
The boiling point of water varies with altitude and baro pressure. I use the "sap tap app" to help determine what the boiling point of water is on the day.
2015 - 8 buckets, 332L sap, 8.5L syrup - Barrel evaporator, 2 steam pans
2016 - 8 buckets, 432L sap
2017 - 10 bags, 470L sap, 9L syrup
2018 - 20 bags, 1050L sap, 17.6L syrup
2019 - 20 bags, 970L sap, 22.2L syrup
2020 - 17 bags, 813L sap, 17L syrup