diff --git a/analyze.py b/analyze.py
index 3086067..44928e0 100644
--- a/analyze.py
+++ b/analyze.py
@@ -325,7 +325,10 @@ def binarySearch(distinctSamples, samples):
         # not return a row, so list entries must be made manually.
         errors = [0] * len(errorTypes)
         for index, count in db.span_error_count(fromTime, toTime):
-            errors[index] = count
+            try:
+                errors[index] = count
+            except IndexError as e:
+                print("could not track error with index", index, "and count", count, "in list", errors, "for error types", errorTypes)
 
         # RRDTool format string to explicitly specify the order of the data sources.
         # The first one is implicitly the time of the sample.
@@ -375,7 +378,7 @@ def binarySearch(distinctSamples, samples):
     # Month: 3600 * 24 * 30 = 2592000 seconds
     # Week: 3600 * 24 * 7 = 604800 seconds
     # Period name, start.
-    for period in [('year', lastResult - 31536000), ('month', lastResult - 2592000), ('week', lastResult - 604800)]:
+    for period in [('decade', lastResult - 31536000 * 10), ('year', lastResult - 31536000), ('month', lastResult - 2592000), ('week', lastResult - 604800)]:
         # Width, height.
         for dimension in [(900, 300), (1200, 400)]:
             rrdtool.graph(args.outputDir + '/{0}_{1}x{2}_{3}'.format(period[0], dimension[0], dimension[1], args.sizeGraph),
diff --git a/fnprobe/db.py b/fnprobe/db.py
index 7e7aee4..ad56577 100644
--- a/fnprobe/db.py
+++ b/fnprobe/db.py
@@ -22,12 +22,13 @@ class probeTypes(Enum):
 
 # See the Error enum in src/freenet/node/probe/Error.java
 class errorTypes(Enum):
-    DISCONNECTED = 0
-    OVERLOAD = 1
-    TIMEOUT = 2
-    UNKNOWN = 3
-    UNRECOGNIZED_TYPE = 4
-    CANNOT_FORWARD = 5
+    DISCONNECTED=0
+    OVERLOAD=1
+    TIMEOUT=2
+    UNKNOWN=3
+    UNRECOGNIZED_TYPE=4
+    CANNOT_FORWARD=5
+    UNKNOWN=6
 
 
 # Changes made to sequences are not transactional, no need to commit after.