Table 1 Descriptive statistics of the number of insured individuals by gender (employed individuals)
| Â | Men | Women | ||
|---|---|---|---|---|
N | % | N | % | |
Year | ||||
 2005 | 239,079 | 7.7 | 165,299 | 7.6 |
 2006 | 242,482 | 7.8 | 166,758 | 7.6 |
 2007 | 249,280 | 8.0 | 171,261 | 7.8 |
 2008 | 251,817 | 8.1 | 173,394 | 7.9 |
 2009 | 253,742 | 8.1 | 177,021 | 8.1 |
 2010 | 299,847 | 9.6 | 205,467 | 9.4 |
 2011 | 309,946 | 9.9 | 214,543 | 9.8 |
 2012 | 315,238 | 10.1 | 220,668 | 10.1 |
 2013 | 316,387 | 10.2 | 223,123 | 10.2 |
 2014 | 318,707 | 10.2 | 228,181 | 10.5 |
 2015 | 322,003 | 10.3 | 238,129 | 10.9 |
Age group | ||||
 40–44 | 754,613 | 24.2 | 500,417 | 22.9 |
 45–49 | 800,681 | 25.7 | 571,594 | 26.2 |
 50–54 | 696,113 | 22.3 | 516,881 | 23.7 |
 55–59 | 536,537 | 17.2 | 392,695 | 18.0 |
 60–65 | 330,584 | 10.6 | 202,257 | 9.3 |
Educational level | ||||
 low | 2,178,916 | 69.9 | 1,447,806 | 66.3 |
 high | 158,979 | 5.1 | 170,262 | 7.8 |
 missing | 780,633 | 25.0 | 565,776 | 25.9 |
Income | ||||
 low | 104,879 | 3.4 | 428,606 | 19.6 |
 middle | 536,416 | 17.2 | 840,409 | 38.5 |
 high | 1,761,154 | 56.5 | 472,309 | 21.6 |
 missing | 716,079 | 23.0 | 442,520 | 20.3 |
Occupational group | ||||
 unskilled | 960,740 | 30.8 | 898,156 | 41.1 |
 skilled | 1,464,937 | 47.0 | 502,155 | 23.0 |
 specialists | 285,572 | 9.2 | 599,088 | 27.4 |
 highly qualified | 109,784 | 3.5 | 85,249 | 3.9 |
 missing | 297,495 | 9.5 | 99,196 | 4.5 |
Multimorbidity | 81,489 | 2.6 | 67,364 | 3.1 |
total number of observations | 3,118,528 | 58.8 | 2,183,844 | 41.2 |
at least 2Â years of observation | 2,835,451 | 90.9 | 1,973,699 | 90.4 |