Boxplot statistics
Variable	lower whisker	lower hinge	median	upper hinge	upper whisker
werkl	469	517.5	561	589.5	629
inpw	209.72	343.17	417.065	503.005	655.4
bouwv	174.6	215.25	230.5	254.3	301.6
pigr	94	134.5	190	228	362

Boxplot Notches
Variable	lower bound	median	upper bound
werkl	547.593255428703	561	574.406744571297
inpw	387.302958075649	417.065	446.827041924351
bouwv	223.228703117929	230.5	237.771296882071
pigr	172.589852535885	190	207.410147464115