Lots..... but way, way better than most others.
After a comprehensive look through all my service records:
Year rig, miles: 2000 LX with 163,000
Years owned: 11 1/2 years, original owner
DIY Repairs: Actually all of these are wear items
Cost: $196
Pre-cat O2 Sensors 163K miles - $100
Heater Hose T-Fittings Replaced with Brass - ~150k miles - $25
Center Console Lights Burn Out - ~140K miles - $15
New Tailgate Lifts - 98k miles - $56
Countless times lubing driveshaft to prevent dreaded THUNK!
or
Shop Repairs: Some of these are wear items
Cost: $3,485
AC Leak ~ 150K miles - $120
Ignition Lock Break - 148k miles - $564
Front Seat Leather Repair (didn't last) - 136K miles - $156
Front Sway Bar Broke/Replace Both and Replaced Rear Driveshaft U-Joint - 119k miles - $400
Fan Clutch and Thermostat Replacement - 110K miles - $396
Replaced Starter - 92K miles - $868
Removed Rear AC Lines Due to Leak/Close System Off - ~73k miles - $642
Replace RF Wheel Speed Sensor - 71k miles - $339
Total in Repairs: $3,681 or $320 per year