condition mean min max 4 h after light 9.4771205 9.404861 9.54938 8 h after light 10.338474999999999 9.871823 10.805127 12 h after light 9.3961225 8.892173 9.900072 4 h after dark 10.9864585 10.769108 11.203809 8 h after dark 11.850624 11.818889 11.882359 12 h after dark 10.391312 10.391312 10.391312