condition mean min max 4 h after light 156.051 149.021 163.081 8 h after light 127.5265 123.838 131.215 12 h after light 154.255 144.239 164.271 4 h after dark 195.1295 190.642 199.617 8 h after dark 208.4355 206.881 209.99 12 h after dark 192.9545 186.293 199.616