So here is how the last year looks on a graph in the context of everything since 1996:
This marks a clear break from the steep upward trajectory we've been on since late 2011. I got my current job in mid-2011 and then the financial markets performed quite well. At that point our spending wasn't that high yet.
The next graph shows actual monthly non-retirement savings since 1996 and a 12 month moving average:
I have truncated the axis at -$15k but we dissaved $53k in January and $118k in February as we bought the house. As you can see, monthly savings peaked at an average of $10k per month in 2012-13. From March to December this year we only averaged $1,700 per month. I hope saving will be higher than that this year, but it's not going to return to its previous level. First, we are paying off our mortgage, which doesn't count as current saving and, second, Snork Maiden will be on maternity leave. She will get her regular salary till 8 weeks after the expected birth date. Later she will receive the minimum wage for 18 weeks and otherwise not receive anything. I think other baby expenses will be like a "rounding error" by comparison.
What about investment performance? This graph compares our "accumulation index" or "total return index" to the market indices since the depths of the financial crisis stock market crash in March 2009: