condition mean min max 4 h after light 142.411109 136.063836 148.758382 8 h after light 157.6178225 146.616672 168.618973 12 h after light 168.110764 138.941534 197.279994 4 h after dark 129.853421 128.487841 131.219001 8 h after dark 133.864376 107.98219 159.746562 12 h after dark 92.14735 92.14735 92.14735