condition mean min max 4 h after light 41.1235875 36.155675 46.0915 8 h after light 25.6770085 19.232424 32.121593 12 h after light 28.618606 26.13776 31.099452 4 h after dark 15.1854415 15.028912 15.341971 8 h after dark 16.173627 13.790841 18.556413 12 h after dark 73.475394 73.475394 73.475394