Here are my year-end balances over the last decade since I started working. First column is my 403b balance. Second column includes 403b plus IRA and HSA for comparison. I have a pretty generous employer match, which helps a lot.
Year: 403b / 403b + IRA + HSA
2008: $7,700 / $7,700 (partial first year of work, 401a/403b up to employer match only)
2009: $34,000 / $40,000 (started Roth IRA at max)
2010: $62,000 / $74,000
2011: $78,000 / $95,000
2012: $119,000 / $146,000 (started HSA at max; increased 403b to max)
2013: $175,000 / $219,000
2014: $220,000 / $279,000
2015: $247,000 / $314,000
2016: $296,000 / $381,000
2017: $332,000 / $430,000 (so far)