condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.106358 0.0 0.212716 4 h after light 0.0928605 0.0 0.185721 8 h after light 0.0978345 0.0 0.195669 12 h after light 0.095146 0.0 0.190292 2 h after dark 0.0 0.0 0.0 4 h after dark 0.091051 0.0 0.182102 8 h after dark 0.209309 0.205511 0.213107 12 h after dark 0.0 0.0 0.0