Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 stackmathqa100k/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 stackmathqa1600k/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+stackmathqa200k/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

stackmathqa200k/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a95bfcc6c5044c7d438369d699a834312ca92a3c748a6da462d74c2b37a685e3
+size 497823744