Table 4.
External | Internal | Motion | Navigation | 2009–2018 | 1999–2008 | ||
---|---|---|---|---|---|---|---|
Count | Percentage | Count | Percentage | ||||
X | – | – | – | 2371 | 33.3 | 418 | 33.8 |
X | X | – | – | 1768 | 24.8 | 287 | 23.2 |
– | X | – | – | 663 | 9.3 | 96 | 7.8 |
X | – | X | – | 485 | 6.8 | 104 | 8.4 |
X | X | X | – | 424 | 6.0 | 69 | 5.6 |
– | – | X | – | 383 | 5.4 | 56 | 4.5 |
– | X | X | – | 373 | 5.2 | 63 | 5.1 |
X | – | – | X | 176 | 2.5 | 44 | 3.6 |
X | X | – | X | 136 | 1.9 | 15 | 1.2 |
– | – | – | X | 83 | 1.2 | 23 | 1.9 |
X | – | X | X | 73 | 1.0 | 12 | 1.0 |
– | X | – | X | 50 | 0.7 | 16 | 1.3 |
– | – | X | X | 49 | 0.7 | 15 | 1.2 |
X | X | X | X | 45 | 0.6 | 11 | 0.9 |
– | X | X | X | 41 | 0.6 | 8 | 0.6 |
In each row, an X in the column indicates the studied component