condition mean min max 4 h after light 14.481959 13.21665 15.747268 8 h after light 16.786445 16.618282 16.954608 12 h after light 16.1135995 15.375598 16.851601 4 h after dark 19.591039000000002 16.618282 22.563796 8 h after dark 21.356488 17.3287 25.384276 12 h after dark 17.24701 17.24701 17.24701