condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.86898 0.0 1.73796 4 h after dark 1.6801249999999999 1.67681 1.68344 8 h after dark 2.529345 1.69568 3.36301 12 h after dark 1.68646 1.66789 1.70503