condition mean min max 0 h after light 1.2324015 0.912663 1.55214 4 h after light 1.338825 1.17792 1.49973 8 h after light 0.914247 0.805164 1.02333 4 h after dark 1.377355 1.25489 1.49982 8 h after dark 1.232985 1.08772 1.37825 12 h after dark 1.262775 1.18878 1.33677