condition mean min max 3 h after light 0.38109 0.131442 0.767567 6 h after light 0.830527 0.347331 1.13028 9 h after light 1.545761 0.0 4.36522 12 h after light 1.283005075 0.0805993 2.59683 3 h after dark 1.869692 0.372839 4.54463 6 h after dark 1.1636723333333334 0.196882 2.30455 9 h after dark 0.36287433333333335 0.179955 0.653228 12 h after dark 1.963195 1.67603 2.25036