Update duckdb index files

.gitattributes

@@ -115,3 +115,4 @@ NumGLUE_Type_8_crowdsourced/test/index.duckdb filter=lfs diff=lfs merge=lfs -tex
 NumGLUE_Type_8_crowdsourced/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 NumGLUE_Type_8_crowdsourced/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Numersense_structured/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Numersense_structured/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

Numersense_structured/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f1915ecc890912a8a7dfe3645d5fe5c6ae6c6a302a6c013c3aef93a471366228
+size 1847296