diff --git a/README.md b/README.md
index faebc6ac..f0d0ff98 100644
--- a/README.md
+++ b/README.md
@@ -128,9 +128,17 @@ or simply:
    
 ## Code size
 
+Theses tables has been created by analyzing the map file generated by AVR-GCC after adding `-Wl,-Map,foo.map` to the command line.
+
+As you'll see the code size if between 1680 and 3528 bytes, depending on the features you use.
+
 ### Minimum setup
 
 <table>
+	<tr>
+		<th>Function</th>
+		<th>Size in bytes</th>
+	</tr>
 	<tr>
 		<td>strcmp(char*,char*)</td>
 		<td>18</td>
@@ -176,7 +184,119 @@ or simply:
 		<td>18</td>
 	</tr>
 	<tr>
-		<th>TOTAL</th>
-		<th>1680</th>
+		<td>TOTAL</td>
+		<td>1680</td>
+	</tr>
+</table>
+
+### Additional space to parse nested  objects
+
+<table>
+	<tr>
+		<th>Function</th>
+		<th>Size in bytes</th>
+	</tr>
+	<tr>
+		<td>JsonArray::getArray(int)</td>
+		<td>42</td>
+	</tr>	
+	<tr>
+		<td>JsonArray::getHashTable(int)</td>
+		<td>64</td>		
+	</tr>
+	<tr>
+		<td>JsonHashTable::getArray(char*)</td>
+		<td>64</td>
+	</tr>
+	<tr>
+		<td>JsonHashTable::getHashTable(char*)</td>
+		<td>42</td>
+	</tr>
+	<tr>
+		<td>TOTAL</td>
+		<td>212</td>
+	</tr>
+</table>
+
+### Additional space to parse `bool` values
+
+<table>
+	<tr>
+		<th>Function</th>
+		<th>Size in bytes</th>
+	</tr>
+	<tr>
+		<td>JsonObjectBase::getBoolFromToken(jsmntok_t*)</td>
+		<td>82</td>
+	</tr>	
+	<tr>
+		<td>JsonArray::getBool(int)</td>
+		<td>18</td>		
+	</tr>
+	<tr>
+		<td>JsonHashTable::getBool(char*)</td>
+		<td>18</td>
+	</tr>
+	<tr>
+		<td>TOTAL</td>
+		<td>130</td>
+	</tr>
+</table>
+
+### Additional space to parse `double` values
+
+<table>
+	<tr>
+		<th>Function</th>
+		<th>Size in bytes</th>
+	</tr>
+	<tr>
+		<td>strtod(char*,int)</td>
+		<td>704</td>
+	</tr>	
+	<tr>
+		<td>JsonObjectBase::getDoubleFromToken(jsmntok_t*)</td>
+		<td>44</td>
+	</tr>	
+	<tr>
+		<td>JsonArray::getDouble(int)</td>
+		<td>18</td>		
+	</tr>
+	<tr>
+		<td>JsonHashTable::getDouble(char*)</td>
+		<td>18</td>
+	</tr>
+	<tr>
+		<td>TOTAL</td>
+		<td>796</td>
+	</tr>
+</table>
+
+### Additional space to parse `long` values
+
+<table>
+	<tr>
+		<th>Function</th>
+		<th>Size in bytes</th>
+	</tr>
+	<tr>
+		<td>strtol(char*,char**,int)</td>
+		<td>606</td>
+	</tr>	
+	<tr>
+		<td>JsonObjectBase::getLongFromToken(jsmntok_t*)</td>
+		<td>56</td>
+	</tr>	
+	<tr>
+		<td>JsonArray::getLong(int)</td>
+		<td>18</td>		
+	</tr>
+	<tr>
+		<td>JsonHashTable::getLong(char*)</td>
+		<td>18</td>
+	</tr>
+	<tr>
+		<td>TOTAL</td>
+		<td>710</td>
 	</tr>
 </table>
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