diff --git a/example/_data/csv_data.csv b/example/_data/csv_data.csv
index 7520def..bb6b870 100644
--- a/example/_data/csv_data.csv
+++ b/example/_data/csv_data.csv
@@ -1,2 +1,3 @@
 key,value
-1,2
+k1,a
+k2,b
diff --git a/example/_data/file_data.yml b/example/_data/file_data.yml
index 6a9e26b..98e2219 100644
--- a/example/_data/file_data.yml
+++ b/example/_data/file_data.yml
@@ -1 +1,3 @@
-key: data file value
+k1: data file value
+k2: another value
+k0: last value
diff --git a/example/_data/json_data.json b/example/_data/json_data.json
index 719fdae..504cfdb 100644
--- a/example/_data/json_data.json
+++ b/example/_data/json_data.json
@@ -1 +1 @@
-{"key": "json data"}
+[["k1", "json data"],["k2", "more data"]]
diff --git a/example/data.md b/example/data.md
index 0be7d9c..d31e519 100644
--- a/example/data.md
+++ b/example/data.md
@@ -3,11 +3,21 @@
 
 ## YAML data
 
-* {{ site.data.file_data.key }}
+{% assign data = site.data.file_data %}
+<table>
+  {% for k in data %}
+    <tr><td>{{ k[0] }}</td><td>{{ k[1] }}</td>
+  {% endfor %}
+</table>
 
 ## JSON data
 
-{{ site.data.json_data.key }}
+{% assign data = site.data.json_data %}
+<table>
+  {% for k in data %}
+    <tr><td>{{ k[0] }}</td><td>{{ k[1] }}</td>
+  {% endfor %}
+</table>
 
 ## CSV data
 
diff --git a/example/index.md b/example/index.md
index 73f8fe5..ef3d988 100644
--- a/example/index.md
+++ b/example/index.md
@@ -10,11 +10,12 @@ variable: page variable
 * {{ site.static_files.size }} Static Files
 * {{ site.html_pages.size }} HTML Pages
 * {{ site.html_files.size }} HTML Files
-* {{ site.pages.collections }} Collections
+* {{ site.pages.collections.size }} Collections
 
 ## Tests
 
 * [Archive]({% link archive.md %})
+* [Data]({% link data.md %})
 * [Collections]({% link collections.html %})
 * [Markdown]({% link markdown.md %})
 * [Pages]({% link pages.md %})
@@ -23,6 +24,9 @@ variable: page variable
 * [Static file]({% link static.html %})
 * [Tags]({% link tags.md %})
 * [Variables]({% link variables.md %})
+
+## Variables
+
 * {{ page.variable }}
 * {{ site.variable }}
-* {{ site.data.file_data.key }}
+* {{ site.data.file_data.k1 }}