condition mean min max 4 h after light 185.0220755 180.850275 189.193876 8 h after light 192.853623 192.853623 192.853623 12 h after light 195.73496849999998 166.263275 225.206662 4 h after dark 249.458478 192.853623 306.063333 8 h after dark 229.41391700000003 174.134239 284.693595 12 h after dark 134.350717 134.350717 134.350717