OSM SQLite Experiment: Frequency of key barrier (elem type k)

1	fence	10149	8302894	4855
2	gate	5631258	226493	17
3	wall	2652	5301825	2564
4	hedge	408	3709573	1153
5	kerb	1524630	402768	529
6	bollard	765328	50302	1
7	retaining_wall	71	598392	114
8	lift_gate	523084	2014
9	block	175477	6930	6
10	guard_rail	696	173666	10
11	yes	47991	98720	83
12	cycle_barrier	136511	361
13	swing_gate	111281	369	1
14	stile	98057	733
15	entrance	95676	1260	10
16	ditch	715	79719	32
17	cattle_grid	79236	275
18	toll_booth	55207	4709	1
19	city_wall	48	52959	293
20	kissing_gate	45507	101
21	chain	33138	7978	3
22	jersey_barrier	9966	22899
23	height_restrictor	23062	80
24	wicket_gate	17785	2512
25	sliding_gate	15795	453
26	turnstile	15377	705
27	handrail	57	13439	3
28	log	10541	1914
29	border_control	7679	1163	29
30	hampshire_gate	6978	104
31	avalanche_protection	12	6992
32	planter	5076	1414	2
33	debris	3284	3047
34	sally_port	5883	244	4
35	rope	1417	3257	1
36	embankment	22	4284	1
37	line	3	3319	2
38	door	3144	110
39	wire_fence	9	3205	9
40	full-height_turnstile	3097	16
41	field_boundary		3042
42	traffic_island	3	2987	46
43	bump_gate	2318	19
44	cable_barrier	76	2117
45	berm	41	1990	1
46	tank_trap	952	732	1
47	no	280	1213	5
48	bar	1083	242
49	motorcycle_barrier	1281	1
50	property_boundary		1262	1