condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.11065333333333334 0.0 0.181387 12 h after light 0.104968 0.0 0.314904 4 h after dark 0.138173 0.0 0.220097 8 h after dark 0.04740566666666667 0.0 0.142217 12 h after dark 0.11968 0.0 0.196307