OSM SQLite Experiment: Frequency of key surface (elem type w)

These queries show the top frequencies of keys for key (element type )

1 asphalt 27,332,198
2 unpaved 11,411,021
3 paved 4,049,658
4 concrete 3,366,121
5 paving_stones 3,312,719
6 ground 3,211,046
7 gravel 2,087,693
8 dirt 1,540,212
9 grass 1,159,240
10 compacted 1,029,219
11 sand 520,575
12 sett 431,118
13 fine_gravel 398,506
14 wood 209,308
15 concrete:plates 178,321
16 cobblestone 151,215
17 earth 150,607
18 pebblestone 121,978
19 metal 41,104
20 grass_paver 40,943
21 artificial_turf 38,091
22 tartan 32,864
23 clay 32,704
24 unhewn_cobblestone 31,638
25 concrete:lanes 26,157
26 mud 26,122
27 rock 21,394
28 stone 11,354
29 woodchips 9,956
30 dirt/sand 8,131
31 soil 7,046
32 bricks 6,584
33 brick 6,579
34 cobblestone:flattened 5,623
35 trail 5,499
36 acrylic 4,144
37 chipseal 3,420
38 metal_grid 2,624
39 cement 2,596
40 hard 2,314
41 ice 2,210
42 stepping_stones 1,863
43 rubber 1,857
44 paving_stones:30 1,633
45 rocky 1,346
46 interlock 1,320
47 tiles 1,184
48 shells 1,108
49 ground;grass 963
50 rocks 923

:-)