condition mean min max 4 h after light 3.4975153333333333 2.8088490000000004 4.728898 8 h after light 2.768199 2.294595 3.433725 12 h after light 1.434981 1.3505120000000002 1.557959 16 h after light 2.880186333333333 2.4630400000000003 3.4235519999999995 4 h after dark 2.7885153333333332 2.209939 3.658269 8 h after dark 1.7432526666666668 1.479478 2.165785