condition mean min max 4 h after light 2.8983063333333337 2.817013 3.041377 8 h after light 2.1446330000000002 1.545633 2.486082 12 h after light 2.596804333333333 1.40383 3.8803099999999997 16 h after light 2.838248 2.386558 3.3892290000000003 4 h after dark 2.3129793333333333 2.10431 2.658585 8 h after dark 1.5105453333333334 1.460987 1.5417319999999999