Instrumental | Â | Year 1 | Year 2 | Year 3 | Year 4 | Year 5 |
---|---|---|---|---|---|---|
 |  | n (%) | n (%) | n (%) | n (%) | n (%) |
 | Never | 202 (17.1) | 219 (20.2) | 133 (12.9) | 96 (10.6) | 64 (7.9) |
 | Some shifts | 321 (27.2) | 303 (28.0) | 225 (21.9) | 227 (25.2) | 172 (21.2) |
 | 50% of shifts | 128 (10.9) | 106 (9.8) | 82 (8.0) | 93 (10.3) | 71 (8.7) |
 | > 50% of my shifts | 136 (11.5) | 104 (9.6) | 106 (10.3) | 104 (11.5) | 83 (10.2) |
 | Almost every shift | 264 (22.4) | 263 (24.3) | 376 (36.5) | 316 (35.0) | 353 (43.5) |
 | Don't know | 127 (10.8) | 87 (8.0) | 107 (10.4) | 66 (7.3) | 69 (8.5) |
 | Total | 1,178 | 1,082 | 1,029 | 902 | 812 |
Conceptual | ||||||
 | Never | 168 (14.4) | 198 (18.2) | 93 (9.1) | 72 (8.0) | 37 (4.6) |
 | Some shifts | 433 (37.1) | 389 (35.9) | 272 (26.5) | 240 (26.7) | 202 (24.9) |
 | 50% of shifts | 146 (12.5) | 131 (12.1) | 130 (12.7) | 92 (10.2) | 99 (12.2) |
 | > 50% of shifts | 110 (9.4) | 102 (9.4) | 121 (11.8) | 112 (12.4) | 109 (13.4) |
 | Almost every shift | 160 (13.7) | 136 (12.5) | 327 (31.8) | 306 (34.0) | 281 (34.6) |
 | Don't know | 150 (12.9) | 129 (11.9) | 84 (8.2) | 78 (8.7) | 83 (10.2) |
 | Total | 1,167 | 1,085 | 1,027 | 900 | 811 |
Persuasive | ||||||
 | Never | 471 (40.2) | 441 (40.8) | 365 (35.6) | 288 (32.0) | 219 (27.0) |
 | Some shifts | 425 (36.3) | 423 (39.1) | 367 (35.8) | 370 (41.2) | 327 (40.3) |
 | 50% of my shifts | 49 (4.2) | 54 (5.0) | 50 (4.9) | 52 (5.8) | 64 (7.9) |
 | > 50% of my shifts | 31 (2.6) | 29 (2.7) | 56 (5.5) | 43 (4.8) | 42 (5.2) |
 | Almost every shift | 38 (3.2) | 28 (2.6) | 61 (5.9) | 38 (4.2) | 39 (4.8) |
 | Don't know | 157 (13.4) | 106 (9.8) | 127 (12.4) | 108 (12.0) | 121 (14.9) |
 | Total | 1,171 | 1,081 | 1,026 | 899 | 812 |