Border and Non-Border | Border | Non-Border | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
n | Mean | Std. Dev. | Var. | n | Mean | Std. Dev. | Var. | n | Mean | Std. Dev. | Var. | Rate Ratio | Sig. | ||
Year | 1998 | 2308 | 188.61 | 117.45 | 13795.64 | 38 | 259.15 | 102.13 | 10431.46 | 2270 | 187.43 | 117.35 | 13771.84 | 1.38 | <0.001 |
1999 | 2318 | 176.79 | 119.66 | 14319.52 | 37 | 241.47 | 67.80 | 4596.90 | 2281 | 175.74 | 120.04 | 14410.33 | 1.37 | <0.001 | |
2000 | 2339 | 169.10 | 101.55 | 10313.36 | 37 | 254.91 | 108.50 | 11771.62 | 2302 | 167.72 | 100.87 | 10174.72 | 1.52 | <0.001 | |
2001 | 2316 | 174.53 | 156.93 | 24626.86 | 37 | 242.88 | 85.04 | 7231.48 | 2279 | 173.42 | 157.59 | 24835.47 | 1.40 | 0.008 | |
2002 | 2346 | 174.29 | 118.16 | 13960.91 | 37 | 237.48 | 84.69 | 7172.22 | 2309 | 173.28 | 118.35 | 14007.80 | 1.37 | 0.001 | |
2003 | 2351 | 176.75 | 103.97 | 10810.76 | 37 | 251.84 | 73.72 | 5433.97 | 2314 | 175.55 | 103.96 | 10807.48 | 1.43 | <0.001 | |
2004 | 2357 | 170.79 | 94.39 | 8909.16 | 38 | 225.17 | 89.57 | 8022.91 | 2319 | 169.90 | 94.22 | 8877.89 | 1.33 | <0.001 | |
2005 | 2365 | 170.71 | 89.65 | 8036.26 | 38 | 234.24 | 62.78 | 3941.37 | 2327 | 169.67 | 89.65 | 8037.83 | 1.38 | <0.001 | |
2006 | 2378 | 168.33 | 87.58 | 7670.45 | 37 | 223.86 | 91.11 | 8301.22 | 2341 | 167.45 | 87.26 | 7614.49 | 1.34 | <0.001 | |
2007 | 2368 | 173.26 | 82.51 | 6807.28 | 38 | 224.56 | 59.26 | 3511.84 | 2330 | 172.43 | 82.58 | 6818.93 | 1.30 | <0.001 | |
2008 | 2379 | 179.69 | 85.99 | 7393.45 | 38 | 214.83 | 57.09 | 3258.72 | 2341 | 179.12 | 86.26 | 7441.61 | 1.20 | 0.011 | |
2009 | 2393 | 187.05 | 104.44 | 10907.81 | 37 | 255.92 | 120.52 | 14524.28 | 2356 | 185.97 | 103.83 | 10781.48 | 1.38 | <0.001 | |
2010 | 2398 | 198.97 | 114.82 | 13183.59 | 37 | 237.46 | 61.31 | 3758.44 | 2361 | 198.36 | 115.37 | 13309.35 | 1.20 | 0.040 | |
2011 | 2388 | 192.21 | 101.15 | 10231.00 | 37 | 249.58 | 69.21 | 4790.20 | 2351 | 191.30 | 101.32 | 10266.07 | 1.30 | 0.001 | |
2012 | 2398 | 194.50 | 109.35 | 11956.65 | 38 | 205.83 | 48.46 | 2348.84 | 2360 | 194.32 | 110.05 | 12110.31 | 1.06 | 0.520 | |
Average | 179.76 | 107.65 | 11589.50 | 237.17 | 81.64 | 6664.62 | 178.83 | 107.77 | 11615.06 |