condition mean min max 4 h after light 12.876755 11.681581 14.071929 8 h after light 11.566568 9.368883 13.764253 12 h after light 16.823004 10.141265 23.504743 4 h after dark 10.555279 8.749195 12.361363 8 h after dark 15.725579 14.550087 16.901071 12 h after dark 11.819187 11.819187 11.819187