condition mean min max 4 h after light 4.21515 4.17865 4.26579 8 h after light 4.25897 4.17286 4.3314900000000005 12 h after light 4.3302966666666665 4.2192300000000005 4.45275 4 h after dark 4.21729 4.16368 4.2872699999999995 8 h after dark 4.169063333333334 4.1538900000000005 4.1892 12 h after dark 4.228723333333333 4.18805 4.27614